rate this stuff for add some horses on a 318

very cool, I'm running a 318 904 3.23 gears with 26"tire and stock converter. Had trans rebuilt with full manual valve body and lower 2.74 1st 1.54 2nd gears. Even with stock converter it gets the car (68 cuda) off the line quickly. just an alternative versus a lower rear end ratio that would raise your cruise rpm's.