[427Aggie]

We need Calmetal to pop in here and make a comment...Im not good at reading cam cards but if I read this right you have 244/659 on the intake and 249/663 on the exhaust...I've always been told that once you get over about 600 in valve lift you will get reverb through the carbs since they don't have a common runner.

I ran a CC K33-246-4 which is 110deg lobe sep with a 294/248@50 and .605 valve lift and was right at teh bleeding edge. It seems to me that you have way way way too much valve lift.

One thing on Webers that you have to get used to is the don't have alot of lope to them...it really levels them out.

So now the next question.

Who built the motor and did they know that it was going to have Webers on it? I know Keith Craft has a special grind cam that he does for weber motors with lift but very little overlap so you don't get the pop out of the carb when both valves are open..that is essentially whats happening here...I think.

CAL!!!! Your opinions oh great one!

Matt