MXZ / Legend / Summit / Grand Touring / Formula
Ok fellow dooers. I am by no means a newbie. Just looking for some info only seasoned 670 builders/racers would know. Basically I want to know how to build big power from the 670. I have two motors to choose from. A regular 95 ss 670 and a 95 mach 1 670. I am looking to bump the compression way...