How Much Horsepower Required to Cruise Comfortably at 70 MPH?

rumblefish360 said
3.90 X .69 = 2.69. HWY. GEARS!
Close to the 2.76 ratios found stock in cars.

Exactly! I run a 4.56 gear 2500 rpm at 75 mph. I can drive to the track, make 10 sec passes all day and drive it home.