Another 318 Build... Surprise!

I would not run the Summit cam. There was a show that used that cam on a dyno and it made very little power over a stock 360 cam. 73 up 340/360 manifolds can be found relatively cheap on Ebay or on here. I'm running them in my Duster with TTI head pipes and Summit dual exhaust.
I have a brand new. 060 318 that's been balanced and blue printed. Edelbrock heads, rpm intake. Roller rockers, erson cam stc... Only run on the engine stand. I'll sell it complete or keep the top end for myself, and just sell the bottoman end. I'm located in Delaware. PM me if you are interested