83 GMC Ramp Truck - 454/TH400

[fleming23]

Originally Posted by carpoor

That seems like such a better deal than dragging around a trailer. What kind of mileage does something like that get?

That was precisely why I purchased it!

I honestly don't know mpg and/or don't remember if I have ever tried to calculate it. When I am on the way to the track, I am usually booking down the interstate at 70-80 mph and the turbo 400/big block combo is definitely drinking fuel at those speeds. I would guesstimate 8-10 but my driving along with the untuned carb certainly don't help.