Originally Posted by
carl graham
scot6580: Thanks for the advice...I had heard that the "increase" was more noticeable at the higher RPM... think Ill give it a go...Thanks again...Carl

Glad I could pass this on. I've read in this forum it was a good mod, and sure enough it seems like a gainer to me. I took the advice of many on here and got a new o-ring gasket, you definitely want to do that. Good Luck and have some fun!