What you have is a tuning problem and perhaps some parts that need replacement/adjustment, Brian.
Using a remove-and-replace strategy/approach to resolving the problem is going to be the long way home to an incomplete solution; although you might get lucky — you probably won't. When you are done, you will either still have the driveability problems or you might be modestly better off.
The one-shot fix is going to be challenging. You will need to find a tuner with a dyno who actually knows how to tune Holley carburetors. These are increasingly rare birds because most shops are geared to tuning EFI with a laptop.
When you find him, the ante at the poker table is likely a half-day on the dyno, some jets, air bleeds and other Holley-related paraphernalia, potentially an ignition clean-up, and a fair amount of money to pay for the dyno time and the tuning job. My guess, and it is only a guess, is you are around $800, depending on how the dyno time and tuning knowledge are priced. For the most part, the parts will be incidentals.
When you are done, you will have a very driveable engine with good street manners. Maintaining that engine personality over time should be relatively easy.
BTW if you have anything in the distributor that needs replacing you should throw out your distributor and buy one of these =>
https://progressionignition.com.
In addition to being infinitely tunable, it also has an electronic engine disabling capability that is activated from your cell phone and is impossible to override without replacing the distributor. The Progression toy will set you back another $570 or so, but it will work flawlessly and outlast you and the engine.
33Likes
Threaded Mode
