one fact about blow through that efi cant do. when blowing through the booster the fuel cools the intake temps like a water alky kit. but not quite that well. mine is no intercooler and is great. the facts are about 90% BLOW THROUGH dont use intercoolers. same with prochargers. look at any procharger book they rate power fi, then carb, then intercooled. the blow through carb numbers are right up there with intercooler.