I have a stock 75 440 truck motor in my 72 Satellite. I put in a cam with .454 lift and around 280*. About the same as a factory 1970 440HP cam. Figure the motor is around 7.5-8 CR. With shorty headers, 3310 Holley and aluminum low rise intake it runs pretty dang good.

72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
Moparmarks Parts & Restorations
Desert Mopar Metal
Grand Jct. CO
970-261-7039
http://moparmark.com/
motormangj@gmail.com