Glad to see you're an honest man Curt. When I hear claims of 20
plus mpg with a stovebolt, I have to laugh.
I've put 15k on my truck now and kept a log of all the mileage.
The average is 14-15mpg. The stock 216 engine had complete
rebuild by a major engine shop that is a large marine engine
rebuilder. Original stock engine had about 55k on it. The
mileage dropped off by about 1 to 2 mpg after the rebuild.
Can't explain that other than it was bored .030" over. I was
getting 15+ before it was rebuilt but pushing a lot of oil.
Oh...SM420 with a 4.10 HO52 rear.
dg
Maybe burning all that oil contributed to the total "fuel" delivery.
Or more likely, you liked the sound of that fresh engine so much you couldn't keep your foot out of it.
Have you checked the fuel mileage after the new rebuild was fully broken in?
Carl
