Welcome! An air fuel gauge will make it easier. Some carb brands have different sized transition slots - that is your just-off-idle to about 2500 rpm fuel. Some need to be restricted so it will idle clean. Make only one change at a time
Thanks for taking the time to show the spark plug read following changes - that makes this vid gold. Had to go back and listen to your numbers twice. I am intrigued by the staggering of PVCR sizes, and assume your manifold is dual plane and divider had not been notched down prior to "playing with the separator" test. The story told by end cylinder plugs speaks of short runners vs. longer, and the compromise that has to take place to manage it. To date, I'm hard pressed to find any evidence to suggest people should not notch their separator down about 3/4" to balance/smooth signal side to side, while maintaining the primary benefit of a dual plane: avoiding fuel puddling under the carb.
great video, didn't those tempests have a crazy rear trans. and diff. ? just to be clear, did you mod a dead head holley reg to a return, i hope that's what you did because that's what i need.
First of all the stock tempest engine and driveline is gone. Yes they did have a transaxle and rope drive but mine now had a conventional drivetrain and rear end. And Yes, it's easy to modify a Holley regulator to make it a return. I have a video showing how. Fuel comes in the side and out the bottom now.
Theres this section about drilling the jets that was an excellent idea. Do you mind if I upload that part of your video on my channel and give you credit?
,,,,an excellent presentation , fine video and needed info about calibration,,,,,I need a crankcase evac system.....was gonna build a simple breathers with check valves plumbed down to the header collector,,,,maybe now to rethink the idea...... thanks................
Dry sump has totally different windage control, but they do sell oil pump and vacuum pump combination drives because racers use vacuum with dry sump. It's not about pressure, it's about windage, there is a hurricane of oil spinning around the crank.
With the knowledge you have I bet you have built a few carburetors. Never heard of a vacuum pump being used this way. PCV with a catch can would seem simple and no loss of HP from a pump.
Okay the only thing is with you doing all that to the carb and having a bypass regulator keeping the fuel moving did you run your quarter mile time before you did all that and then run another quarter mile time after you did all that to actually see if it made the car faster? because a lot of people do things like that and it really doesn't make their cars any faster
