Building the Ultimate Response RB Motor?

[brianglawson]

Ok, as some may know i have a 1972 240z

im looking to put an rb 20-25- or even 26 in it, but what i want is the ultimate response maching

i know on sr20's its possible to put the natural aspirated pistos to up the compression a little, yielding better response

Option:1
RB20DET
N/A SR20DE Pistons (giving 9.5-1 compression)
Equal length tubular manifold
3 inch elbow
full 3inch catless exhaust
custom intake plenum, maybe ITB's if feasable
Light Flywheel
Aluminum driveshaft
4.11 gear r200
electric fans
s15 t28 bb turbo at about 16 psi
spearco intercooler
recirculated BOV

now this is assuming the piston interchangability

option 2 will forthcome if 1 is shut down whats everyones opinion on this? i can get rb20's for 1500$ all day long. So this might be a good way to make 350whp or so decently cheap plus then i would have 2 2.0 240's