Russ69Runner
Well-Known Member
Have a 600 cfm Holley on the 383 now. Purple cam with 9.8 to 1 compression. Vacuum secondary. Getting hesitation at cruse speed. It runs strong when giving it pedal and accelerates well. Seems to be plenty of power their. But the stutter comes in like I said at cruse. Strange. Idles good. Revs good. Tan color on the plug's so it dose not seem to be running lean. Any thought would be appreciated. Russ.