351w

They were gas hogs though. I think my compnee work truck managed about 12mpg on the highway, certain the work truck gearing played a big part in that also.
Yeah mine never got good milage, but back then they still sold leaded gas and it was like .90 a gallon. And I worked at a gas station, lol. Man, I am really missing that truck now after thinking about it again. I have to find that thing. I sold it locally 20 years ago.