Upgraded 360 Cam?

If going the route to rebuild, then it a Hughes 2800 rpm would be a good investment. High compression pistons as mentioned are also highly recommended. But if going Edelbrock heads, I would also recommend buying the heads bare and having someone you trust do the seat, guide, and spring and retainer work. This would be the cam I would use with said Edelbrocks and the proper rate springs, about 130 seat and 320 open.
Howards Cams, Retro-Fit Hydraulic Roller Camshaft & Lifter Set, Chrysler SB, 219/225 @ .050, .525/.525, 110 LS - Competition Products
But with that good of a combination, I'd probably just go with an MP .528/284 solid.