I know DOVE made at least 2 versions, maybe more, the PIE with raised floors and "bulged out" plenum, and a standard type tall and narrow OEM port. The PIE lines up pretty good with a BT high riser CNC port, still some port work needed but not too bad. Jim ran one on his car before the sheet metal tunnel ram.The more standard HR with tall narrow ports would require epoxy in the floors and widening/raising of the port to match. I have messed with 2 of the PIE HR and one standard HR, both DOVE of course since FORD or nobody else, never made one.
Slow 68 Cougar, soon to be slower