I’ve not read much of this, but I will say this. The H22 is a phenomenal motor. It’s got gobs of torque, and the tranny ratios are quite short, which is nice, because there’s always power there. And while they are not boost friendly with stock internals with the FRM walls, who cares? I thought this was for auto-cross?
The B18 and K20 are also absurdly amazing, but also very different. They certainly rev higher than the H, and are a bit lighter, but they lack the initial torque of the H.
Either way, he can’t go wrong. They’re all amazing.