Well since very few guess. I will tell everyone what computer program predicts.1135hp@7750 and 838 tq @6500.Now this is with optimal cam not the one I will run for while (crane 296-500).Im thinking its estimating high.I figure if I can get 1050 plus I will be doing good. Its only 526 ci ,admittedly heads are good flow wise. Hey I always say it would nice to be wrong and see how the rest of the world lives,this would be good time to do so.Not laughing at all(NLAA).