So after freeing up the heat riser valve, I realized that this manifold I just got from the salvage yard might be warped. When I put a straight edge on it, one port stands away from the straight edge by 1/16 of an inch. Can anyone tell me if it's possible to have that much machined off the other three mounting surfaces? The port in question is the one that mounts at the front of the engine.
Thanks for any advice you can give.
