My '65 Cuda has a 2-bbl 273 that's barely runs (low compression in #2 and #7). Parts for this motor don't seem easy to come by; especially performance parts. I like the idea of rebuilding the existing motor like a commando but I'm not really sure what it's going to take or where to get the right / best parts. I've seen lots of late model 360's for sale and am wondering if I would be better off just swapping the engine. Anybody have any suggestions?