Reply to "Engine back-fire"

Push Button 1223 (Guest)

I reread your post agian. I had the same problem with hesitation on my 69 chevelle. It ended up being a bad vacuum advance on my new distributor. I also had to change the springs on the metering rods, which are the same thing as the power valve on the holley. I know that the old holleys had a problem with the power valves being ruined by the backfires. I would also check to make sure that intake and carb does not have a vacuum leak. ALso make sure that youir dist cap is sitting on tight

10/5/044:13 PM

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