Use a toyota 2ltr 1ggze Supercharger on a low comp L20b black rocker top bluebird engine and tuned strongberg or big jag su. Extractors, electronic dizzy, 8psi - 10psi using different pulley size (I think standard is 6psi), elctronic switch a la maddo maxus and get it dyno tuned by ferals mate.
Supercharge is better for the road cheaper and late L20b bottom ends are bullet proof with the extra ribbings, SC gives on off power, torque from idle and drivability.