why not put a B16a2/3 crank in your b18, with custom rods, and JE or some other aftermarket pistions, and have a screaming motor, get a set of skunk2 or Crower cams, upgrade the valve train, and an ITR trany..and you will have a bad ass setup. but if you want the most power possible..nothing beats displacement..and an H22 would be great for an FI engine, theres a kid where i live that had his h22 resleaved by golden eagle thats garunteed to 60psi...not that you can put that much power to the ground...but its the idea...hehe