I was also wondering how you felt about centrifugal super chargers? Would the stock crank hold up to 6-8 lbs of boost? I looked up the 3610 heads you suggested, the first ones I found were 112cc if I remember correctly. Using a cr calculator I found online, if I used the 112cc heads my ratio would be around 9.8. would that ratio work for pump gas with no intercooler?