Home Forums Hunting & Shooting Hunter's Campfire black betty (1977 F250)

Yep. I bought a new '77 F-250 4X4 in March of that year, 400 engine, auto trans - and it got about 8 mpg..

I made a couple changes.. Tossed the factory 2-barrel carb and intake manifold in trash - along with the exhaust - and replaced it with an Edelbrock manifold and a small Holley 4-barrel. Then changed the exhaust to duals with side pipes mounted under the rocker panels..

Mpg went to 13 and I had tons more power to work with - and it also was the easiest/fastest starting Ford I ever had.... Maybe that type of conversion would work well with Black Betty...