Mechanical Cam

For a off the shelf cam, I'd do a comp cam 270. I believe it's 224 @ .050. This should work well. Lift wasn't to big ethier. When you do your heads, just a bowl porting and back cutting of the valves will do great. Or grab a nice valve like Ferrea to replace the stockers.

Remember, you could ask comp (Or other cam manufacures ) for a custom cam for no more than a few pennys more and it'll take just a few days to grind. I'd get a split duration cam with about 8 - 10 degress more on the exhaust with the manifolds.