I used to have an XA, not 1971 though, my fave was the XY but never got one of them...didn't spend $80k on it though!!!
I have alot of respect for the Fords , always wanted a 50's F150 Truck with a 460...just for the hell of it...!!
Robbi..
I have also seen a stroker kit in SM for a
351 Windsor to go out to 421 cubic inches....6 shy of the 427 big block..but
the weight of a small block..very torquey...