340 improvements with dyno numbers

RustyRatRod said
Actually, the early 340 was specced out at 10.2:1. The later ones 8.2:1. Though they blueprinted around 9:1 and 7.5:1 respectively.

hi, actually the 72 -73 340, being blueprinted, are 9.32 cr. factory was rated 8.5 cr. do the math.