I was just playin' around on my DynoSim with a motor very close to yours and there's no way I could make UNDER 700 hp and 645 ft/lbs with it. I used a Comp solid roller 11-700-9, advanced it 5 degrees so that the IC is 103, EC is 113, LSA is 108, timing events are 41/67/81/35 with 0.680"/0.680" lift. 0.050" duration is 251/260. So, very close to what you have. 1050 on a Victor Jr, stepped tube race headers. 11.5:1 SCR. Merlin heads. 705hp @6500, 645 ft/lbs torque @5000. Peak volumetric efficiency 106.8% @5500. Peak BMEP 221.6 @5000. So, something ain't right. Could be me.