quartermilepass
Well-Known Member
have a 340 motor with edelbrock aluminum heads. what do you guys figure I could get away with came size. has 510/510 cam in it now. heard I can maybe get up to 550? I know correct way is what put a dummy spring on it and measure distance valve to piston. but I don't remember all the specs to do so. stroke and all is the same heads/block never shaved .030 if that even matters
