[Jus Cruisin]

The point I'm making is the Roush supercharger is NOT high output like a Whipple or Kenne Bell Mammoth. The most boost you are going to get is 5 lbs. or 6 if you change pulleys. They ARE a safe, easy conversion that is very docile in a Mustang weighing 3,600 +/- lbs. Roush wouldn't include a 3 year / 36,000 mi warranty on an otherwise bone stock 5.0l engine if it was certain to grenade the engine now would they? It certainly will make a 2,400 lb Backdraft scoot. For horsing around on the street I don't think completely rebuilding the engine is economically practical. Put it under the stress of drag racing and a lot of things will need upgrading.