Originally Posted by HaulinBass

might want to cool it with personal attacks, so research would be what?
the bore and stroke are identical, its a three port sleeve with allot of exhaust duration and a crank with fairly open timing numbers. Im guessing they went more conservative on the crank timing as the spec2 and 3 are pretty much as far as you want to go on crank timing without having a drag specific motor.

Im not stupid when it comes to motors , show me the internals and I can make a pretty good estimate on what it is and how it performs.

Thank you Jeff for the info on the inserts

Any way to get one of the pre production boxless engines without paying full M.A.P?