Yeah, the little M90S in the kit isn't going to win you any horsepower contests, but I have to say its instant torque production is pretty tough to beat. It really makes my Luxobarge get up and dance.P.S. Gearbanger, I always wanted to get my 96 GT the Allen kit, thought it was all-that and a bag of chips. Funny looking back at it now though, since my car makes about as much as my 96 would have with that blower (with its non-PI heads and all).
Its small displacement allows it to spin up reaaallyy quickly. My starts making boost right off idle and puts out over 360lb/ft to the wheels by 2,000RPM. Something I never could have accomplished with any N/A set up....it doesn't matter how many valves the heads had.