+1 for the Ford 9 inch. There's a boatload of NASCAR-specification speed equipment available for it, and the price is right on most of it because so many round track guys use that setup. They're about as close to bulletproof as anything out there except a Dana Type 60, and those things are getting pretty scarce.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!