These # are from a dyno-jet chassis dyno @ the shop where i work.I know my exact driveline loss. I engine dynoed then stuck in the truck w/o changeing notning. 31%. This is with 3 1/2"s of carb spacer using the new Brodix 1913 intake design. Needless to say to say the intake is going to have alot more work done on it in the next few weeks. Stronger #s (maybe).
Those 565's @ 1150hp is 2.03 hp per cube
my 522 is 2.049 hp per cube with RFDs, port work :shock: