I want to stick to the SC but I'm not100% I have hand ported my heads the block needed to be bored . 02 over I personally love the sound of superchargers so I need a little help figuring this out I'm going to run 140lb Springs because eventually I want it to Rev past 7000 I want to run at the largest a 2.8 PULLEY non intercooled and I and that small Block idle sound so help me fill in the blanks here ppl