If thats an OBX manifold, them i wonder when they started making stock honda manifolds LOL.

an since when did preludes come with 65mm throttle bodies? only honda that came with bigger than a 60 was the Integra Type-R which was a 62mm TB. never heard of a FACTORY HONDA 65mm sorry.

H22a injectors=290cc but on a stock d series makes no difference
H22a FUEL rail=same as a D series, so pointless mod

only realy mod i see is an intake and a header. thats it, all the rest is either stock or a mod that made no power.

listen man people arent going to give you all the answers everytime you change your mind. since you have joined you have made 3 threads that consist of:

1) HOw to build a 700whp B series
2) how to build a 400whp D serie
3) how to build a 250-300whp D series


see what im saying, seems you keep chaning your mind every day because you dont know what you want.

biggest waste of time is answered questions that didnt need to be asked. find out what YOU want to do FIRST, what your REALISTIC BUDGET IS, an go from there.

if you only have $3000 then ovbiously a GSR swap and a turbo kit aint happeneing.