My friend over here made 221whp (on Dynojet STD CF) with stock IM and Head with N1 cams @ 0,0 but he has CP 12:5@1 86mm pistons with a B18 tri y header and his peak # are around 7,800-7,900 on stock IM the header moved the powerband to the left and hold power to 8,800
And he traps 107-108 mph @the 1/4