gas mileage suggestions please

[oldcarbuff]

I have a 67 half ton long step with the 250 six cylinder and a three speed on the column. I get just under 15 miles per gallon on this thing, which is not a joyous amount, as I am getting divorced, and I hate to see the little money I am going to have left running through the carb quite so quick.

Every thing on this truck is bone stock-I have set the timing carefully, but have done nothing else to it--what suggestions do you all have for improving mileage? HEI distrib? plugs? wires?

If I had a bigger budget, I would love to figure out how to swab a TBI unit from a 4.3 v6 onto the old six banger, but not this year.

My dad has a 72, and he gets 16 plus with an automatic and a 350.

My truck does wind up VERY quickly. I seldom drive over 45-50, because it sounds like it is revving so high. At just a bit over 60, it sounds as if it will (or does) float a valve. Makes an awful noise. The engine is clean (in the valve cover, and side covers), runs like a champ, idles great, no smoke.

OCB