i'm was running mids on a patriot racing built mx motor, with a long rod crank...i sold the crank and the mids. put a stock stroke hot rod back in with pt high revs...after talking to my builder...the motor should run just about the same but i'll come on around 1/4 throttle instead of right of idle. I'd much rather run t-5's or t-6's than a full on drag pipe like a cpi....that's just for my style of riding.