Debating on a kenne bell vs. sts turbo system for my emissions friendly 351w h/c/i build. +Instant power,50state legal,same amount of boost, possible better overall than a sts kit....the engine is a Dart 351, afr 185 emission legal, Gt40 lower, kenne bell 2.2 blowzilla flowzilla kit emissions friendly, and the all supporting mods, 75mm tb,80mm maf, aermotive fuel kit, fuel pumps etc, run like 8psi-15psi, wich will be better kenne bell vs. a possible sts kit, mabye even cutting into trunk to make work....What would the est.hp with 351 h/c/i kenne bell 8-12psi or more boost if possible, I heard there are heat issues,detonation, etc if I run higher boost with 92 octane, I dont want to run more than premium gas, this is a street car, daily driver, thats why i was considering Kenne bell. Any input would be greatly appreciated.