Well, where could things go from here, to a point, I was planning on forward facing any way, my engine builder/mechanic only does forward facing for GT35 forged builds any way. Some of the comparisons are unrealistic on this forum circuit etc, when it's my build and wallet. Both the mechanic and I can get a little tense in the "control freak way". I can forsee dyno only as a comparo. I can only afford one plenum. A Greddy, plazaman would have to be loaned. Stock is on the head. The build would have forged pistons, mild cams and the turbo above. Any result would be qualified by that set up.