Quote:
Originally Posted by 51shoeboxer
The Holley 94 carburetor is part of the load-a-matic advance system. There is no mechanical advance system (centrifugal advance); only a vacuum advance system in which engine vacuum is used to advance ignition timing. It is possible that the vacuum-controlled advance plate in the distributor is stuck, but you can easily check that. Another possibility is that the vacuum diaphragm on the distributor has failed. If you have an adjustable timing light, you might measure ignition timing at idle and with the engine at about 2000 RPM. With the load-a-matic system functioning properly, you should see the ignition timing advanced about 20 degrees at 2000 RPM. Good luck.
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Everything is good. I tested the vacuum at the carb and at the distributor. It was just very badly out of timing. Owner picked it up and said he can go 60 mph now! lol.