Edelbrock mt-5 for 318

Yeah, the Holley Street Dominators for small block is essentially a 273 HiPo intake in aluminum but with the bigger carb base. And the best part is they can be had relatively cheap. The Marine manifold is the same thing except cast iron. They made 2 versions of the Street Dominator and both worked very well.
Thanks for the heads up on the street dominator. I've never used one of the small block mopar ones but thought it looked like a reasonably good design compared to most of the other cavernous single plane designs. I've heard the action plus is good for milder builds but tends to have some mixture distribution problems from lower vacuum levels caused by long duration, large overlap cams, but it can be tuned out by staggering the jets.