Join Date: Aug 2010
Location: Ulster County, New York
Bronco Info: 1978 Cummins Bronco
I built a '83 Bronco with a carbed 300 and a '95 5-speed that I swapped in, and that thing got about 20 mpg. As long as I kept the speed down. The aerodynamics of a Bronco aren't the greatest. Somewhat like a solid block of steel rolling down the highway.
The only thing better than the 300 for fuel mileage is a diesel.
1978 Bronco Custom, 6" skyjacker & 3" body lift, 37x12.50R16.5s, posi front diff, 3.50 gears, Dynamic Racing C6 w/billet 1200 rpm converter, upgraded brakes, '91 Cummins 12V, Denny T fuel pin, injection pump maxed out & timing advanced, 3800 gov. spring, 60# valve springs, ARP head studs, 4" exhaust.