Sorry if I did not clarify . I have a F22b1 vtec motor. Not a d-series.
So by being fuel injected a port and polish doesnt increase performance.
Would It benefit swapping to a H23 head. I know its a stright bolt on , But who knows about the h22 vtec head swap. I have read many threads stating that its a straight bolt on and others stating that the block needs to see the machine shop. So Not fully knowing what would work , I was just planning on beefiing the head I have up . Only if it was worth it.