XW 351 Cleveland Tune Up! Plugs, Jets & Timing + Bonus Fuel Leaks..Again! 

G'day everyone - Thanks for watching! I reckon the adjustments made with the timing and the vac advance made way more of a difference than the jetting. It's still way rich - I reckon I should be running 68s in the primaries and 75s in the secondaries. What do you think? What are you guys running in your Clevos? Are you running a hotter plug? I think I need to bin that dizzy too bite the bullet and get some Ice Ice Baby!

Dry, Dry, Dry (big smile) is what is going through mums mind when she checks baby out. But it is also a dude checking his engine out. LOL, LOL.

I think I'll be chasing a fan set up like yours. 👍

Bloke if you swap your front metering block with one from a 780 vac sec , you will have much cleaner idle off idle response to even small throttle angle changes will be raunchy . Personally if you run a dual plane intake then use a smaller jeton the shallow side of the plenum , with a 2 or 3 step richer jet on the deeper side of the plenum . I went 68 Shallow primary 71 on the front deep side of plenum with mixture screw on shallow plenum side at 1 turn and a quarter , with the deeper plenum side mixture screw at 1 turn and a half . With shallow plenum secondary jetting being at 75 , with rear deep plenum at 78 jet.i also lay a slight back cut on the primary blades where they interact with the idle fuel supply port on the baseplate with a slightly ported transition circuits . The only other 2 ways that I've found work for leaning the mix is dropping the fuel level in the bowls , and perhaps increasing the volume of air flowing down the emulsion tubes via the low and high speed air bleeds . On single plane intakes then yes matching jets for both primaries as with the secondaries . If you look up the Ivan Tighe cam catalogue and check out the cam profile I designed myself Dean Tighe ground it up for me and we labelled it Cleveland solid #764. Also with your xw perhaps try the same trick I used for low idle vacuum conditions , in my XD I used an XD 6 cylinder brake booster . By virtue of its smaller volume , the huge mechanical cam still generated sufficient manifold vacuum to completely sweep the booster , even with lower than 9 inches of mercury , the brake pedal always felt like it was close to stock for feel and effort , the total difference between large volume V8 booster with limited vacuum assist , and the smaller volume 6 cyl booster being swept clean by the fastér idling cammed up clevo are chalk and cheese .

Great work there buddy good to see you working on your XW GS Falcon Cheers from Bill

Hi again mate i put an aem wideband on the xe and it was still way to rich at wot at cruise and idle dropped more jet sizes made no difference so i decided it was just to big . So i bought a quickfuel ss 680 vac sec and omg what a difference it made its like a different car to drive no more jerking at low speed and it revs so much cleaner and crisper than before best thing i ever did straight out of the box it was near perfect pv 6.5 primary 68 sec 78 jets secondary spring purple. The only things i have changed is it was still to rich at wot so i dropped sec jets to 74 and changed the secondary spring to a white one to make secondary open faster its perfect now afr at wot 11.5-12.0 part throttle 13.5 cruise 14.0-14.7 idle 13.5 hope little update helps cheers

Love it good job had a good laugh and learnt a bit too.

Great work!! you should look into installing a O2 wideband sensor, will make it easier to tune and take out the guess work, have bought one for mine! once I put the motor back in hopefully should be alot easier to tune.

I put the hotter 5 plugs in and installed a wideband AFR gauge. Better performance and better fuel economy. Have a look at progression ignition. It is a distributor with bluetooth connection to adjust timing without getting your hands dirty.

Lol at the spark plug. Normally something falls down and the extractors eat it. You find it.......after a while. Also set your float levels as well I set mine just touching the sight hole, oh and please keep an eye on that filter. Some thing that can leak fuel right beside the spark generating device makes me nervous.

Its incredible when you drop something it always ends up in the centre of the car or in the most shit house position possible to retrieve

I love the cleveland have one in my 1976 f100

Factory style distributor’s don’t have full advance until they’re up around 4500-5500. Also, the amount of advance is dependent on the compression, fuel and cam specs. But 10 deg advance base and 30 deg advance full is a good place to start for most pushrod v8’s. To tune the carb effectively you need an o2 sensor in the exhaust and a vacuum gauge. Then drive around for a few days and see what conditions are lean etc. I’d start with 70’s primary and secondary. Have a look at progression ignition. They have a totally programmable distributor that doesn’t require a brain box or any other add ons. It’s essentially the whole ignition side of a normal efi but for a carb engine. Great product that’s going to revolutionise carb engine tuning.

Great videos. Keep up the xw content. Subscribed

hi again mate i ended up having to change the rear jets up 2 sizes from 76 to 78 as it was a bit lean

Hi mate, When are you uploading some more XW content! I’m loving your videos. I am an XY man nowadays, however had an lime frost XW fairmont very similar to yours when I was 22. Keep the good stuff coming!

I love the name Meatball Garage. Awesome. You must have some good merchandise?

Fitted a wideband 02 gauge to mine, worth every cent, no more guesswork. Id say 68s in the primary's might be a little to small in the 351 but see how it goes. I run 68s in the primaries on my 302 clevo with 600 holley and its spot on.

I have also now just subscribe to your channel

So you said sometimes when you floor it pops from carburetor because its lean how does one fix it?

When you do your initial timing you should have no vac advance connected and a plug on the manifold side. When you advance your distributor you need to check your idle RPM and adjust it from the carb (double check transition slot adjustment cause this will make it pig rich if it's too exposed). On a 351c I would use a 650DP or a 780 vac sec and you'll get a cleaner idle, looks like you've got an 850dp.

You can always tell a Clevo than a Holden 308 etc no competition GAME OVER

You need to reposition distributor so advance is pointing straight forward

hi mate my 351 was to rich as well was bogging down and had a flat spot specs 4ma crank flat top pistons 292h comp cam pavtek 5 axis cnc ported 2v closed chamber heads 70cc 9.8:1 comp air gap intake holley brawler 750 dp the brawler had 80 in the rear and 72 in the front jets i dropped it to 76 rear and 68 in the front and drooped power valve from 6.5 to 3.5 it made a heap of difference a lot crisper but still had a flat spot when you first stomped on it so then i put a rpc a half inch phernolic spacer 4 hole and that made it even better again no more flat spot even more crisper more low down power and revs a lot better i couldnt believe the difference the spacer made i had to drop 3 inch air filter to 2 and half inch to fit under bonnet though my timing is 18 initial and 34 total hope this helps cheers

CLEVO FOREVER!

Mines a 393 stroker hydraulic roller making 535hp in an XY Ute.

hi how did you workout what size jets you needed

Need a wideband guage to tune the carb otherwise you are guessing.

Sounds tuff What power is this running to the motor?

mate whats the distributor that sits higher so the vac adv doesnt hit the thermostat housing?

Did Isaac petrak do this engine for ya ? The headers and engine looks familiar from one of his video the clevo king

Need thread sealer

I'm having the same problem with my 351 Cleveland running rich. I just put a quick fuel carburetor on it and the plugs are all black. The timing is set at 10° before it topped dead center which it's always liked a few more degrees of timing any suggestions?

Hi mate, what fan and radiator set up do run in the XW?

dude....never wear a hoodie with the strings hanging and lean over a running motor.....please...we want you around to keep coaching us....

The right way to do this is at the racetrack timing your quarter miles here let me help all of you out you're all running way too lean the brawler had it right right out of the factory 72 primaries '80s in the back for a clevo baby..

Come and fix my shit box bro and we can swear together