In the 60s Ford had a finger in every racing pie except Can Am, where they only dabbled. True an Indy-Ford powered Lola won the first Can-Am race but after that it was all Chev until Porsche took over.
WI Ford put some effort into Can-Am? I don't mean a major effort like Le Mans, more like supporting a team with engines and the like much like Chev did.
In 1966 most cars used iron block-alloy head small block Chevs of about 365 CI with 500hp. In 1967 the alloy 427 big block Chev entered the picture with about 620hp and grew to 496CI with 780hp by 1971.
In 1966 Ford had available an iron block-alloy head version of their 427 which should have made about 600hp in sprint race tune. Using these I'd think Ford engined cars could have a good crack at the 1966 and 67 seasons. In about 1969-70 Ford made a couple of all alloy 494CI versions of the hemi head Boss 429, these could be a rival to the Chev 496s in the later seasons.
Would the Can Am series be any different if Ford engined cars were up there contesting for the lead?