The passenger side will just lift out with the motor out of the car. The drivers side should only have one steering arm going through it. With that unhooked, it should also lift out. You are correct, A-body headers are a pain. My advice is if a person is looking for a street cruiser, and not looking to go faster than high 13's, stick with manifolds. I've seen where a 69 barracuda actually reached high 12's with manifolds with a mild 360, 904 and 3.91's. Anyways, my 2 cents