V8's are overrated, Just set that RB up properly, look at the results with FP turbo's, an FP35 combo would give you what you want both response and top end with right housing, just look at 34GeeTee's results with only a FP3076 on an RB25, he got 390kw's with big mid range, with a 3.2L and FP35 it could be a perfect match...