65 C-30 mileage check (after 114 miles)

[66Submarine]

Alright, I put 114.4 on the clock since I last checked it, and the results are in. I bought exactly 5.00 gallons in a can to check, and it was 30lbs worth of fuel; so the scale and math works.

In 114.4 miles of mixed driving, driving normally, I atomized 7.9 gallons of 87 octane with that little Rochester 2 bbl; for a total of 14.5MPG.

I'm pretty happy now, the truck drives great; and 14.5MPG I can live with. Only "mod" to speak of is that I bumped the timing up. To 12 degrees initial, IIRC. Carb is stock jetted, idle mixture screws turned in a bit lean from max RPM/vac reading for economy. The engine is a 195HP 283, the 2 barrel car version with the small chamber "power pack" heads. Rams horn manifolds running to a y-pipe and single small outlet OE type muffler. Transmission is the wonderful, indestructible, SM420 truck four speed. I think the rear gears are 4.10, with a 7.50-17 bias mud tire @ 620 revs per mile.