I have an '81 chev. one ton w/ 454 and 4 speed. I was just wondering how much power it really has. The engine was a remanufactured engine from napa or someplace like this it has around 25 k on it. The only piece of emission related equipment was a smog pump which is long gone. The exhaust it straight through dual 2 1/4" pipe with 15" straight-through glass packs (no cats.). The only performance part is an edelbrock 650. Chiltons rates it as 210 h.p. and 345 ft.lbs. of torque. How much does it really have?