Homemade EFI, what manifold?

Since the Magnum intake has vertical mounting holes they can be re drilled at the correct angle for pre Magnum motors fairly easily. There were 3 styles of factory M1 intakes. 2 that did 4 barrel carb/throttle bodies, 1 of these had the bosses drilled and the other needed them drilled and the 3rd was a 2 barrel version. Just look on Craigslist, E bay and especially the Dakota and Ram forums. These pop up quite frequently for under 200. If you go with Magnum style heads they will bolt right up.