another cam question

So, I've aquired some goodies over the last couple months, and of coarse have more questions.I have a 76 360 .30 over fresh bottom, heads have been lapped and spec'd, I plan on running 3.73 rear end w/ 245 60 14 tires. The last couple of weeks a performer alum edelbrock intake,and 770 cfm holley street avenger carb have basically fallen in my lap. I am still unsure how lumpy I can get with the cam, and now if I will be over carbed. oh yah elec ignitionas well. I would like the car to be mean on the street, possiblely a few passes on the track, not far on the hwy,but would still like to get to a show and shine or two. One other concern is swapping the (74 swinger) rear assembly for a 70-73 light and bumper assembly. Thanks N80