Best 318/x-head /hyd cam combo

Ol'Dodge, that's what I would do.

Low compression is not the end of the world. Better to have a good flowing head and low compression rather than the reverse.

This exactly!!!! We have never put 360/340 heads on a 318 and lost performance, ever!!! Milling the heads ,040 is what I like to do, and nope, I did not mill the intake. Bolted it on and the bolts lined up better! Forget the cork end gaskets on the intake, use a thick bead of RTV