I never really checked the calc's - don't have a tach , either but I've ran @75mph for a couple hours straight . Stock 2F with Trollhole carb and distributor , 33x10.50 Toyo MT's and stock 4.11's . Yeah , it's loud and really doesn't seem to mind it , but at over 80mph it really starts to complain . Can't go too far at that speed , fuel tank empties pretty quick . I've figured out by gps tracker it will run 13mpg at 68 , 10mpg at 70 - aerodynamics just kills it but engine has plenty of power yet for being nearly 38yrs old .
Feels like an upgrade after driving a seriously lifted Samurai the same speeds with the engine tach'ing north of 5,000 revs and 33x12.50 Swampers howling like mad . Talk about short , that thing was only 84" WB stretched out a bit on springs , but handled like a tall Porsche due to no weight , 3200lbs fully loaded . Drove it for almost 12yrs and put over 300,000 miles on it . It lives in Indiana now , after the new owner rebuilt it ....
Sarge