eolsonite

I was correct, the Whipple is a twin screw, as the Saleen and Kenne Bell, and will be supplying about 475 to the flywheel, if you choose an 8 pound pulley(3.8 - 3.6 usually), the kit will supply larger air induction, a Diablo tune, and by reasoning of physics, the injectors would have to be changed out to 39lb from 24lb.

All three brands offer far more psi and shorter pullies than 8 lb. All the hype after 10 lbs psi or so with a 3.4 pully, will put you over the 500 hp flywheel / 450 rearwheel HP max limit for a 93% octane set up, in which case you'd have to go with much more involved engine change outs.

With twin screw SC's 500hp flywheel / 450hp rearwheel are the agreed upon limits with about 10lbs psi and 3.4 pully, with 93% octane. This is with injectors 39lbs, larger mass air, and tune. Torque with all three of these brands can be set higher or lower compared to the horsepower by the tune within the products particular limits. They are all very simular. Since I've already put on a supercharger, and have researched all the tune upgrades, these are the twin srcrew parameters with the 05/06 Mustang GT.

You can still retain your stock fuel pump and your clutch, and need no other alterations engine wise other than what I mentioned above.I am just attempting to inform anyone intersted based on endless phone calls and verified statistics. Erik