318 upgrades

I'm not sure I'd just go with a summit cam without knowing anything about them. More than a couple cam manufacturers use the same lobe profile as for a chevy, which doesn't take advantage of the mopars' larger lifters.

Even without a rebuild, I'd think a Lunati 60402 would be a good choice. Although, without a rebuild, I think I would leave it at that. The 60403 is a great cam, but with 75k on the clock its probably overkill.

4 barrel carb and intake and headers are good mods. I wouldn't get too crazy though without a rebuild, the 4 barrel and headers can be re-used if you rebuild later.