I had a 69 and put a mid to late fuely 305 in it and put q-jet carb on it and couldn't keep rear tires on it. The drum brakes were more than adequate to stop it (for a pickup anyway). A 70 350 would be all you need to make it fly. Give it a thorough going over, points, plugs, timing, carb.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission