Okay, now help me organize my thoughts
Was the car running okay the last time you cranked it up, or is it an ongoing problem?
Tell us what carb is on the car. What kind of ignition (points or electronic)?
Tell us what the symptoms appear to be. Does it idle smoothly but miss at higher throttle openings? What is the vacuum reading when the vacuum gauge is connected to manifold vacuum?
Have you looked at the plugs to be sure they are dry and not fouled?
Try to explain what you are experiencing and maybe we can cut the troubleshooting down and gain some focus...otherwise we will be pulling guesses out of the air without any logical basis
The car has not be running right for a couple years now and I'm finally getting around to working on things.
I just doesn't have the power or perform like it used to. Always hesitates at acceleration. Used to get decent tire spin going into second with the automatic.
Sometimes I wonder it the secondaries are even kicking in.
The carb is a Holley 4150 series DP mech, 750 CFM.
I have a cheap aftermarket electronic distributor that will not allow me to adjust the vacuum advance or change the mechanic springs. I realize this could be a problem.
Vacuum at idle is about 5. That is the reading from the carb metering block and not the manifold. I'll get a reading from manifold when I get things back together and report back. No vacuum leaks around the intake or carb.
Plugs are dark golden brown on all eight. I just started running Premium Clear (ethanol free) gas with octane boost added. That did help.
I don't know what type of cam it has but its pretty aggressive. Haven't needed to tear it down that far yet.
This is a work in progress and this is what I've done so far....
Leak down test was good on all cylinders around 13% to 18%. However #8 at 28% and #7 at 29%. All the noise was coming from the rings.
So I did a dry and wet compression test. Dry all cylinders tested at low 160 to highs of 170lbs. Wet, all cylinders tested around 170 - 185lbs. #7 jumped 25lbs and #8 jumped only 10lbs.
I'm installing timing tape on my balancer so I can set and read total timing. I just got the balancer off tonight.
I'm going to look at the power valve and squirter after I get the timing set and working correctly.
I'll also make sure and test the spark plug wires.
I'll post more information as I get it done.
Thanks, Guys