Found this old 351M in the yard. It’s not perfect, but it’s pretty solid. Should I restore it, build something, or swap the engine? What do you all think?
That 351 is better off as a boat anchor. Throw a 460 in there and call it a day 
Put a coyote engine in there and take it for a spin!
Ditch the 351M for sure. Go with a 351W or maybe even an LS.
Swap it for a 7.3 powerstroke and throw on a turbo. That would be wild!
I got a '78 Bronco myself. It’s a great project if you’re into restoring old rides.
Go for a V10 swap, bigger fuel tank, LED lights, and some massive wheels. No fancy electronics though, just a Bluetooth speaker and a crazy paint job. Maybe take it for a spin after sniffing some break cleaner in a poorly aired space 