That’s a sweet engine. Back in ‘89 I snagged a ‘70 Cougar XR7 with a 351 Cleveland engine from an old lady who bought when it when her husband died because she wanted something smaller...lol.
It was a great car for the year I had it, but then went off to Japan and sold it to a friend for more than I paid it, which was only $1k. Stiff, it was a lot of money for an E-2 back then.
My parents had a 1972 Cougar XR7 ( baby blue) which was the car I learned to drive in. Everything out front and not much in the back. Went like a rocket in a straight line. Super dangerous on uphill turns on wet roads. Best car ever. Too bad nothing had any corrosion protection back then. Rusted out by 1980.