I used a '77 hp short block, 516 heads cut to 65cc's,steel shim head gasket, a 509 cam, 1-3/4" headers, M1 single plane, 850 holley, TA 10" convertor, and 4.56 suregrip in my old truck. It ran 12.20@106 with a 1.60 60ft time. Use the 440. Dave