My 408 ( 9.5-1 comp., R3 , Indy 360-1s, 600 lift mech.cam ) made 539 hp and 502 tq in my 3150 lb.( with me in it) 68 Dart , 904, 4800 stall 8 inch convertor. 4.30 gears has gone 10.72 at 124, 1.42 60ft. if that helps any

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68 Dart 410 / 904
92 D150 original owner
21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4
23 Audi Q5
16 Honda HRV