That should be a great freeway cruiser with that setup. What size tires are you running? I ran a 235 with a 3-speed and 3.70 gears, and 14" tires for a lot of years. No problem running 60's, 70's, and sometimes 80's if I was really pushing it! If you're running 235/15 tires, the RPM should be right in the good cruise range at highway speed.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!