building a 1970 634 f/c hirth jackshaft puma replica. Wanted to know if there were any mods I could do to it on the way to wake this motor up a little. It has singe HD and stock exhaust. If I run dual carbs would it make much of a difference. What application should I run. someone told me to take off the ringgear for the starter off the flywheeel, would that throw the motor off? Come on CAT GUYS give me a hand.
Ring gear won't really be doing much by taking it off, you won't notice it thats for sure. Dual carbs would be OK if you did a dual exhaust or like Cheetah said, a free flowing exhaust. If you mod the intake then you must mod the exhaust usually.