I'd like to get some opinions on some different heads for my 318. Its a late 70s, early 80s block thats in good shape currently with stock heads, Edelbrock Performer, 750 Holley, headers, 4spd, 8 3/4 391s, in a 1964 Valiant. I want to keep it as a rarely driven street car with an occasional 1/4 mile run. I've got a line on a pair of 302 heads and a pair of mid-90s 318 Magnum heads, both sets are done up to stock specs. What I want to know is, which ones would you go for? I really don't want to change pistons at this time, but cam, intake, carb, etc., is all to be changed with head change. So what do you think would be a good combo for me. I want it to sound good, and go as good as I can within limits listed above. Give me some ideas. Mike