Ford truck what do you think

FordRun · #1 (**permalink**) 06-27-2012, 12:22 AM

i have a 74 f100 360 4 speed i put new carb new plugs wires new clutch hade points taken out . points to electronic ignition. 2 wheel drive. only get 8 mpg in town. i guess 10 on highway. should this be right ? 2 bbl carb. duel tanks.

HIO Silver · #2 (**permalink**) 06-27-2012, 01:51 AM

Is it "right"? Let's just say it's not uncommon.

BUT, my brother has a 69 F100 2wd/ 2 bbl/360/c6 with 3.00 rear gears and pulled 15.7 mpg on the highwy.

What's your rear gear?

fmc400 · #3 (**permalink**) 06-27-2012, 07:15 AM

Sounds a little low; check idle mixture with a vacuum gauge, accelerator pump stroke, choke opening properly.

earthquake68 · #4 (**permalink**) 06-27-2012, 08:35 AM

I have a 300 six with a one barrel and get 12 on a good day, if that puts things into perspective.

mikeo0o0o0 · #5 (**permalink**) 06-27-2012, 08:56 AM

Quote:

Originally Posted by fmc400

Sounds a little low; check idle mixture with a vacuum gauge, accelerator pump stroke, choke opening properly.

X2, also check the air filter and the timing, make sure it's not retarded.
Wouldn't hurt to run a compression test to see what kind of shape the motor is in overall. A "worn out" engine won't get very good mileage regardless.
Remember though, these trucks were designed and built when gas was 35 cents a gallon. Mileage wasn't a big concern then. Even with 2WD your pushing over 4000 lbs of steel with all the aerodynamics of a brick down the road........but it's still fun, ain't it.