getting ready to have my rotating assembly balanced and I have to get rings, but not sure what style. this will be a supercharged street driven drag car (think yahoo cup or drag week). what style do you blower guys use , conventional or gapless? type of material? this motor wont see over 7000 rpm or 12-14 lbs boost very often. I have ross blower pistons 5/64 x 5/64 x 3/16 ring size.