Fortunately, I haven't forgotten most of the MOPAR tricks I learned while playing in the 4WD truck pulling sandbox, and I've got a few engine parts left over from those days. John's firebolt just might get some sneaky upgrades before too long! The warmed-over "440" engine we ran back then made a few dyno runs in the 700+ HP range at 6500 RPM.
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!