1992 5.2 Magnum

I think with a 727 in a 63 you will need to flatten the pinch weld just behind the firewall to make it fit. I would look for a 904 just beause they do fit. You will also have to use a aftermarket kickdown linkage. Also with the wiper motor on the inside that area needs to be "massaged" so the distributor does not rub on the frewall, at least mine did. I am using the schumacher motor mounts. Remove the wiper motor first, or you will damage the mounting feet. Exhaust manifolds or headers are a problem area also. I've done the swap and it is not cheap once you add in all the goodies to make it right. Alot of work too:) You can always drop it in and ugrade over time. Good luck with it. As far as carb or efi....I can't comment except for the carb option. Never ran efi.