These T&D arms are basically a 1.65 ratio. The cam lobe in the picture above is 0.445 and I'm getting .727 gross lift (zero lash). The 7/16 pushrods rub slightly in a few spots. Not sure if I'll run them or not. I don't really want to shave a bunch of aluminum into the motor so probably safer to run the 3/8 pushrods.
Looks like 1.633 with full spring pressure(around 650-700lbs with that spring)..... Pretty good!!
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
