I have a '66 427-425HP coupe that I purchased recently and I think that the timing may need resetting as the engine backfires on accelleration and also at idle when revving up. It starts okay but idles a bit rough. I had the Holley carb rebuilt professionally and so I think that is okay (it was backfiring thru the carb before rebuilding it). The jets I have adjusted open about 1-1 1/4 turns.
The distributor is the original as is the carburetor and the engine was recently rebuilt.
Here is my question: The distributor is the breakerless point one that was used on the 425HP engine. When I hook up the timing light, do I hook it up the same as I would on say, a 327-365 engine? What is a realistic advance to initially set the timing at?
Thanks in advance,
Larry
The distributor is the original as is the carburetor and the engine was recently rebuilt.
Here is my question: The distributor is the breakerless point one that was used on the 425HP engine. When I hook up the timing light, do I hook it up the same as I would on say, a 327-365 engine? What is a realistic advance to initially set the timing at?
Thanks in advance,
Larry
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