Not sure how much HP it made, but my old 340 with TRW 2316 forged replacement pistons, MP 296/557 solid cam, my own home ported 915 J heads, M single plane, 727 w/ 8" stall & 4.10's ran 11.90 @ 110 in an all steel 73 Dart Sport.
Calculators put that combo in the 375/400hp range at 3400lbs. The et to mph shows a extremely efficient combo. Although the 727 will eat some power vs a 904, the converter being right was probably what helped it to be a nice package. Congrats :thumblef:.
