I am trying to figure out a ballpark figure on horsepower for a 454 I have, fourboltmain,forgedrods and crank, speedproforged piston-L2399,about 9-1 compression, bored 60 over(468) rectangle port, open chamber heads 118cc chamber,325ccIntake, 1.7 roller rockers, 286H magnum(556lift,236 duration) comp cam, edelbrock rpm manifold, 850 double pumper, msd everthing, hooker headers. any ideas, anybody else ran one? also thinking about putting it in a 70 nova or chevelle, mostly drag car, some street, any ideas on et's with slicks and 2800 stall, and 373's any responses are great, or if anyone knows any websites!