I think the over 600hp guesses are a bit optimistic for a shorter stroke, mild roller engine. Sounds like one hell of a screamer though.
Doug
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69 Mach 1 R-code - 427MR 4-spd
68 F-250 4wd - 390HP 4-spd
58 2dr Del Rio Wagon - 390 4-spd
63 Mercury Comet 4dr 170ci 3-spd. (24mpg)
65 Galaxie 500 2dr hrdtp - 390 (automatic

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