Quote Originally Posted by southerner
671 as in 671 blower. A performance cam moves more air through an engine. A 671 big cam gets the same and better results.
yes a 671 cam and add some of that NOS gas in the tank too you will need good pistons je .ross and a good bottom end and msl head gaskets .stud the bottom end and heads to better main caps fill 1/2 way with block rock.i would make it a 383 with a long rod buy some 4340 steel rods and crank