On my '67 Chevy 230" I've got a 390 Holley (8007)carb on an Offy intake with the Stovebolt cast exhaust manifolds. The head was recently redone, and compression is real good, but I can't get it to idle or run smoothly once it warms up. The back 3 cylinders seem to be where the problem may be according to sound of the split pipes. The plugs don't look bad. Any thoughts, ideas, suggestions are greatly appreciated!
Thanks, Brian F. #3480
