Can't say on my 80 model. It's a 2wd F150. all stock but the 302EFI 3.00 ratio 31" tires and the TOD 4spd she's a highway flier.Friends truck shuts him dowd at 120. I can run off and leave him in 3rd gear not ready to hit 4th. A friend and I coming back I-35 from OKC a few months back tried to fully lay it out. But never found top end. How fast we where goin, I dunno, just glad no THP or OHP where around to tell, us asure speed. about 130-/+ miles from OKC to or exit in Denton took us right at an hour that day, so we was movin.