Rob- I installed an Edelbrock 2176 Performer Manifold on my 82. It replaced the stock manifold perfectly including the AC compressor mounts. Be careful of Mopar Performance manifolds...despite the assurance of their tech rep, the mounts on the manifold did not match the AC compressor...it was set up for the old RV-2. I finished it off with a 1406 carb and have been very happy with the set up. Phil Brust 73 & 82 Imperial