Exhaust Manifolds

Dan the man said
Sounds like the best thing for a 318 is 360 manifolds and for the 360 there's nothing other than headers. I wish I had the magazine that they built a 318 using only factory parts,except for the pistons. I remember they used 360 manifolds from a Dakota but I don't remember if it was a A body or not. Looks like headers is the best way to go and I think that Doug's headers probably will fit the best.

If you search here, all that has been discussed. All the numbers and any modifications to do. The only reason for the Jeep manifolds is because the right manifold exit is close to 2 1/2" . 67-70 340 manifolds aren't a issue (if I have my dates right)