You should top out around there, but ya gotta have the powaa to get there!!!! LOL. Just playin' with you. You have an E4OD with 3.55s. The E4OD has a taller OD than the ZF5 and @ 90 I run about 2650 RPM w/ a little bit taller tires than stock. So you should technically be able to go faster than me if I was to run stock RPM rev limit, but I don't..

 

Just got the '61-'79s done, check 'em out!