318

ok so just how much of a dog is a 318? my buddy had one in a 74 satelite , that damn thing could hold its own till he tried to rebuild it without any help.
Im putting one in a 74 duster, all that is changed is the bore (20 over) and an edelbrock performer with a 600 holley. i know gears and tranny selection change performance but over all how well should my engine do in the duster?