Don't know if this is a racing post or not, but...

AJ/FormS said
I don't know.
I didn't see what gears you are running back there, and was too lazy to hunt it up,lol
If you have 2.08s then the math is right.
If you don't, my memory could be wrong on the 42 o/d ratio
But if my numbers are right and you have 2.45s say, the math spits out 1421 in lock-up, with 26s,
Click to expand...

I honestly never cared enough to even check it, but I know 80mph is approx. 1,800 RPM's and I think you have the OD ratio and tire size right.
I'll check the tires right now just for kicks and edit this with the size.

Just a hair over 26" (maybe 26.25)