How high do you rev it? I imagine it has a much better powerband now.I used K24 crank, H22 rods (big end narrowed to width of crank journal), and JDM H22 type-S pistons to get as high Comp.ratio as possible, I think I got something like 11.4 :1
Bearings is F20c and k24a2.
If you never have build a motor before this is pain in the ass, but if you have build a couple before this is like a walk in the park.
You will need some management then, I tried Apexi V-afc but that didnt work any good because you need to adjust timing, so now I have AEM EMS and RDX 410cc injectors.
I think they said you use the H series rods and pistons...K24 crank, H22 rods (big end narrowed to width of crank journal), F20 piston. Pretty much it. Similar to using the F20 crank in the K20, the crank will need machined a lil bit, and I would probably have the rod journals machined as opposed to the rods.