stock iroc, Buy a 292 and put that in there, 6.liter does not have the torque that a 292 has. No computer to run the engine like the fuel injection would have to have..

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1936 1.5 wrecker,1937 gmc coe,1939 Chevrolet coe,1942 4x4 coe, 1942 coe,1946 dump,1947 2 ton dump,another 1947 2 ton dump,1950 coe,1967 c30,1937 cat 22,1936 Chevrolet 5 window foremans coupe, 1914 ford speedster.