You're down to 45* of crankcase compression timing on your modded motor, down from 65* - I don't know how that relates to the really wicked engines, but I know that too little crankcase compression time means bad things.

You've also increased the exhaust-transfer port offset to 20* from 16*. Adam, would I be right in thinking that for a higher performance motor you'd want to decrease this offset by opening the transfer/boost ports by a greater amount than you open the exhaust port? Or is the exhaust port more important for the high speed motor?

JB, this is an awesome idea. I tried to get this kind of thing going in another thread, but maybe because I'm a newbie on here I'm not going to get alot of response. The only one that got added to my thread was for the Dynamite Mach 28, with 120* boost port, 124* transfer port, 166* exhaust port, and intake port duration of 48ABDC to 50ATDC for 182* total.