For a h/c/i install I'd run at least a 70mm MAF(Pro-m),70mm tb(I prefer Accufab),and 24-30#inj and at least a 155lph fuel pump. If you are running the typical around 400-500 rwhp blower set up, upsize the inj to 42-60# and the pump to a 255-340lph. If your staying with the basic h/c/i build and aren't concerened about the few extra hp and the clearance issues,I'd go with shorty headers, but if you want to eek out all the power you can... Go long tubes imo.