72 dart w/17" wheels. What problems?

looks about right.. but when i'm on the highway i'm never going that slow... i'm usually at about 75mph so it would wind up to 3600 rpm.. that blows..

had 3:91 gears in my yellow dar for years.. was awesome around town.. drove me nuts on the highway... 3.55 gears made it better but i still wasn't happy.. went 2.94 gear and loved them... jamies dart will be getting 3.23 gears soon hopefully... cruised to deleware yesterday in the dart.. doing 85mph i was getting passed liek i was standing still. lol.