AMC engine swap?

The onwer of that car has two Gremmys now. (1) is a '71 with a transplanted 4.0L HO and OD trans in it. It's EFI, AC, has OD, and the jeep gage cluster and shifter in it. Very slick and rather peppy. His other one is a '74 that he pulled the 258 out of and stuck a 360 in. I did the body and paint and I can tell you it was hard to move that car on "roller" tires without spinning them. And that was 2bb bone stock. I think AMC quality is terrible in terms of body construction but it is a pocket rocket with a real engine in it.