If I read the OP correctly, he's wanting to build his car for stop light to stop light fun. His combination is off. He wants a cam that will let him spin the 318 to 7,500 rpm's, the cylinder heads just won't support that rpm, neither will those 273 rocker arms. He has a heavy crankshaft, rocker arms. No mention of a intake manifold either but he will need a single plane. If he was to build it with the parts that he listed I think that the car would be a dog off the line. A 3.91 or even those 4.30 gears are going to make that 318 scream at cruising speeds. I knew a guy that had a 383 with a 1050 Holley denominator and it was a dog off the line, carb was to big. He put a 850 on it and it ran great. I may not have the years experience that most on here have but I do know that he's combination is as mismatched as it can be.