Well, I just dont think the sohc pistons would hold up to 400whp enviornment no matter how well I had things tuned.
I know of one guy named "chief" who overbuilt his sohc. Ross pistons, Pauter rods (WHY!!!!??!!!) forged crank. his rev limiter is 6200......not sure what the pauter rods are for.
I believe there is a sohc 3000gt that has forged pistons.......but is N/A.......not sure why in the world he did that. He has all the RPW goodies.
Insane amount of money spent on.........a car that still aint gonna be fast.
http://www.3000gt-sohc.com/