They sound cool but you'll be asking for trouble. Then every guy that beats you is going to brag about how he beat a blown stang, when in reality, a blown stang is hard to beat! I raced a Nova recently and he fired his engine up and I heard the gear drive, I made a comment about how his power steering pump needed fluid. He got mad and wanted to run'em. I started my car and my powerdyne is silent, boy did he get his but whooped. Moral, stealth is cool.
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92 GT, 4:10 gears, centerforce clutch, 6# powerdyne blower, bbk h-pipe, flowmasters