Suped up '76 F100 gas mileage question...

[Hpnotiq86]

Hey guys, just a quick question....

I'm getting a 1976 Ford F100 Custom with a 360 big block, bored .30 over, with a big cam.

I was just wondering how MPG I can expect to get out of it. I'm guessing it will be maybe 7 or 8 mpg.

Does that sound pretty accurate to you guys? More or less?


Thanks.

[badasstour]

do you mean a 460

[bumthumb]

If you changed form a six cylinder, and didn't change the rear end, the ratio is likely wrong.
the other thing is to check your exhaust system.
I had a 76 302 in an f100 and got 9mpg. Canged to dual exhaust, put on hi rise and 600 cfm carb and got 19mpg.
put a 360 into a 73 and could only get 10mpg with it driving at 60mph, but if I drove at 50, i got 17 go figure

[Hpnotiq86]

Thanks bumhum, that's pretty good news actually.

badasstour....i'm pretty sure its a 360.