Kevin, with these assumptions; 28" tall tires, 2,600 rpm and 4.11 gears you'd be running 53 mph in high gear.

With everything the same except..... with a T5 transmission with a .72 overdrive (5th gear) transmission you'd be going 73 mph.

Lots of info on the swap, search is your friend.

Good Luck, Ron


RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5