This is what a 50% increase in horsepower looks like 

Yes, NA builds are expensive. No, it’s (generally) not worth it, but something something eye of the beholder… Rough breakdown of costs: - *Cams* $1,000 (127600 + phaser limiters) - *Stroker Kit* $4,000 (4.9L, but only ~9.6 compression ratio [for eventual boost]) - *Exhaust* $1,500 (Kooks LT, catted x-pipe) - *Intake* $2,000 (CAI, TB, Manifold) - *Trans* $6,500 (includes clutch, driveshaft, and axle gears) If you have any questions for me, you can reach me thru my Tazet profile: tazet.com/foureyes And special thank you to those who watch the video all the way through 🙏

The chop is immaculate!

WAKE UP EVERYBODY NEW FOUR EYES VIDEO!!!!!!

Dude has more quality content in a 6 minute and 25 second video than almost every other car-focused YT channel I've seen. I'm not even into Mustangs, but I love this kinda stuff. will be watching more of your videos for sure!

I definitely love this channel. Please, never stop to making content like that.

I’m not even a mustang guy but i like these videos just bc of how educational and how well edited they are. Keep up the great work

THANKS for not making a 25min video for a simple concept, straight to the point, no extra, very cool video

Can we take a second to appreciate Zach's insanely clean and beautiful stock S197? Wow is that a nice looking car.

That has got the be the cleanest and best sounding S197 that I've ever seen. Very crispy!

Love the comparison with a stock 3V stang. Huge difference. Must be that ceramic coating 😊

For all the newbs for this channel, this guy has put 10s of thousands of dollars into his 2007. Love seeing how far an S197 can go. Keep it up!!!

Several years from now after the conclusion of this series this is going to be one of the best on RU-vid IMO. Some young men will find this and be able to enjoy it start to finish in one sitting, I’m happy for them. Thanks 👊🏻

Another great video! Clear information displayed in a timely matter. Looking forward to that Viper getting kitted out man!

Absolutley love this channel. The idea of pushing platforms to their limits and testing them is always fun to watch!

That Mustang sounds absolutely godly. Love what you've done with it! Honestly though I wouldn't go further. It just seems so perfect the way it is. It's got the right power, and amazing sound and response without being too crazy. Almost seems a shame to mess with what looks like perfection.

The quality of editing, the attention to detail, and straight to point yet informative points is refreshing. I don’t even own that type of mustang but i’m a car guy above all. I always loved this body type and i always root for the underdog. I own a 69 mustang with a stock (for now) 302w. I hope to be able to keep up with my 07 srt8 6.1 (a bit modified nothing crazy but it’s quick). Love that you also have a Mopar to have both cars compete. I had to share how impressed i am and i immediately subscribed, hello everyone reading this.

The build has come so far and there is still so much room for improvement. Cant wait to see

Always explaining things the right way and not being boring 👏

Thanks for the video. Would be nice to see how these older cars keep up with newer stock cars and their mods. Will be a nice demonstration of power to money ratios. Love the video! The graphic overlays and pace is awesome.

I’ve been doing this exact same build almost for the past 2 years! So nice seeing other people appreciating this car! Mine is a2010 grabber blue, but the main differences are that I swapped the front end with a 2014, rebuilt the 5speed to be more appropriate, and did a mcloud clutch. I have mine setup for drift instead of drag, but idk how I didn’t find this sooner! Can’t wait to see it as it goes!

Always a pleasure watching you're videos, you're channel growth is well earned :)

Nice. I dig the way your videos get right to the point. No fillers.

Need to start the upgrade process on my 10gt Will be consulting your build list so thank you for all of your work and videos. Keep it up!

As much as I love the fact that you're going turbo ima miss how freaking awesome the car performs n/a. Really enjoy that you're going to squeeze every bit you can of it n/a to have all the fun before it gets too serious.

I am so excited for that viper. The videos are always great and you explain things very clearly. Thank you.

Damn it sounds and looks so good with much better performance, having a vision and seeing it through well done

I was wanting to see what a high comp NA build could do to begin with, glad you've also decided to find that out before going boost!

I love how non clickbait, fact based and how competition was handled in such a friendly manner. dont see much of that on YT these days

Love your no nonsense videos. Great stuff

This is good stuff. I have a 2007 911 Carrera 4 and this was pretty cool to see. It actually feels faster than my 2012 Mustang GT, gotta be the lower weight and gearing playing tricks. Handles so much better as well. The Mustang might as well be a 90s Cadillac. I also have a 2000 Viper GTS ACR, so your channel is right up my alley.

UK viewer here. Not usually a US car follower but they way you approach issues and show your findings makes for a really good watch

I had a 2007 Mustang GT many years ago in college and that was my favorite car. Amazing video. The quality of your editing is excellent!

I applaud you for building it NA. Can’t wait for the new high comp engine vids.

Great video. You could change your axle ratio so it would get in the power band faster. Back in the day I loved reading mustang magazines about builds like this. The S197s should be a good budget build now a days.

Great video as always, looking forward to seeing the engine build!

I love when I see one of your videos drop on my home page. Always look forward to watching them.

Just purchased my own 08' GT because of your series, exact same color as your cousins in vista blue. You have definitely set a good path on where to go, and how to make good power out of these things.

I just freaking love it. The other content is superb too but i am here for that 3V Love 🥰

Great footage, editing and info. Also very nice shifting! This car is bad ass.

Subscribed! so few channels are clean and have a sense guidance, unique and down to real life performance. Can't wait for the next one!

Thats a pretty sweet build. Theres something special about a well setup N/A engine, it'll be cool to see what it runs like with high compression pistons.

It's crazy that your NA 4.6 (4.9) has almost the same amount of power as my supercharged one can't wait for you to add boost you are the bright star of the 3v community love from Germany ! Keep up the great work

great vid. love to see technical specs like the gear ratios and dyno charts. video is short and sweet too 👍🏻

Dude ... your video was "just some" recommendation, but I'm instantly hooked. Love the way you present what you're doing and *duh* really love WHAT you're doing :D cheers

Seriously one of if not the best channels on youtube. Great video, great graphics, clearly presented, and just the right amount of info. Keep crushing it.

I can't imagine how much forced induction is gonna improve this build considering you're doing your best to max out its NA performance first. It's gonna be a beast

Love you content and the way you explain things, your Mustang looks and sounds incredible, keep the content going, enjoying it very much. Regards John

Dude istg your vids have one of the best format pn the platform. My only regret is that i would love if they were longer :) Props to you, and cant wait for the next one !!

Love your content, always looking forward to a new upload. 3V Life!

$800 nitrous system is the cheapest way to go

Always enjoy your videos. I like the cars and comparisons. You keep it condensed - well done!

i would have loved to see you race a stock gt350 or stock hell cat especially since u beat the 10 speed even if u didn't win would have been nice to see a fully na 4.6 vs these 2 cars as a lot of 10 speeds claim to beat hellcats on just e-85 and headers. And the GT350 is like the king of the NA world for mustangs would have also been nice to see ur NA setups vs Fords for that year

Four eyes got the car RU-vidr community in a chokehold every video is a banger.

This channel is probably the biggest reason why I got my 07 Mustant GT lol, I love the progression!

You're videos are so well put together! I used to have an 06 3 valve. Sold it for an 08 gt500. Subscribed!

This is where it’s at. I’m more interested in NA tunes than boosted. Both are cool, but there’s just something about getting the best performance without boosting that just speaks to me.

5:30 Holy crap this man can drive!! Sounds like an auto!! Another fantastic video man, can't wait to see more!

Thanks for the video, waiting further content!

Now I wonder how fast that Porsche would be with similar upgrades.

Nice build my man. Who doesn’t love a good N/A build? They always sound fantastic, and that’s half the fun 😁

Your videos are really well presented and put together. Great effort.

You are my favorite automotive RU-vidr hands down. Keep up the good work

Squeezing 130hp over and still N/A is impressive 😮

S197 gang

1st video I've watched of this channel, good stuff, subscribed 👍

Man your mustang sounds so good, especially that chop chop 🤩 As always great video, straight to the point, no bullshit!

Following as a 03 GT owner I absolutely love your channel. Mine has the 4.6L 2V but very much the same as the 3V you can do quite a bit to make it move NA and hurt alot of feelings. Keep it coming!

The best thing I ever did with my manual 07 GT was cams, long tubes and 4.30 gears. Finally gave it the acceleration (and sound) that i was happy with.

Love the videos, man! cant wait to see the max effort N/A motor first

Was only thinking about this channel the other day, heaps good to see a new video. Can't wait to see what's next!

Looking forward to the n/a build! But that idle chop...... that's going to be my new ringtone!

i adore the effort and education purposes of this project, keep it comin'!

As always, love your content and concise format.

Love all your content man! Super excited for the viper videos!

Dude, this is epic i love the series youre doing

One of my favorite channels hands down. 💪🏽

I'm glad you're messing with it this much as N/A. That's really whats made this build cool to me. Turbo is gonna be a different level of cool but the NA factor is just 🔥🔥

First time looking at your content, keep it up man! Great video

Your videos are very well edited. Impressive!

I love your channel, straight to the point and comparisons!

Great video as always. We’ll see ya next year!

Your Stang sounds so sick Dude. It goes like a mo fo too ! Absolutely a bad ass car. Hope to get some more mods on my 06' gt drop top.

I have crossed paths with you in your mustang. You kept me inspired while I was resurrecting my 06 gt. I love my 3v. It makes a glorious sound! I’m local but I’m sad that I only saw the mustang once as it drove past in the opposite direction.

Love this channel, looking forward to the next video

has to be one of the best youtube builds out there, all videos are 10/10

Great effort and perfect launch, Zach. Thx for helping out with the science.

6 years ago I was just starting to get into cars and I was binging your build videos, and dreamed of having an 05-09 mustang gt to also modify. Things worked out a little differently than I expected and I ended up with a little, fwd i4 blue honda instead lol. However, I still love checking in on the progress and seeing the care and detail that you put into your mustang. Your videos are like no other and are very enjoyable even as a honda bro. I can't wait to see what comes next!

There only is a few channels on youtube where you can see this much passion for automobile

Dude cammed and ported viper 🤯 I can't wait too hear/ see that. 🙌 Thank you foureyes! The video wait was well worth

one of the best channels that provide this type of content , great work my guy and can't wait to see the mustang boosted!

just subscribed. this was one of the best car videos i've seen in a while. I'm a Chevy guy, but you made that Mustang sound and move amazing!

This was a great content-dense video. And what a beautiful looking and sounding machine!

Great video! Great explanation. Well done. Thanks FE.

Its cool to see a 4.6 putting in work. Wonderful sounding motor

Not my favorite platform but I can always respect well done builds with high quality parts. One of the best sounding street cars on youtube.

This video was revitalizing to my soul, especially the sound of that cam!

My heart aches every. single. time I see your videos because my first new car was a 2008 Mustang GT. I don't have her anymore but your series really makes me want to go find a good base car and start modding away over time. Oh and that Chop... *chefs kiss* is delicious.

Been waiting a MINUTE for this update 👍

Great content keep making this quality, and you will have crazy success

Dude, i had a 2006 Silver Mustang GT with the leather seats, 500 super shaker audio system, front strut bar, aftermarket air intake, kooks long tube headers, cat delete, X-pipe to borla mufflers. It was the first sport car that I owned and I freaking loved that car! Watching your videos made think of the possibilities I could do to mine regarding power. But none of those plans I had came true because I sold it. AND BROUGHT A 2013 BOSS 302! It was essentially what I would have mod my 06 Mustang GT to be. Track/Circuit race car. It got a fantastic race inspired built engine with a more refined suspension for twist and turns. I do look back at my and miss my 06 Mustang GT from time to time. After seeing this video makes me want to find another 05-09 Mustang GT and do things that I wanted to do with it😅 In the mean time, I'll keep waiting for the next video to watch from you!