400 Build vs 440 Build

Hot Rod's 383 intake comparision. I would run the street dominator personally. There was a recent post from Challenger340 for a 451 with Eddy heads. He has dyno info, etc.

http://www.hotrod.com/techarticles/hrdp_0712_mopar_intake_manifold_comparo/

http://www.hotrod.com/techarticles/hrdp_0801_mopar_intake_manifolds/viewall.html