[Username1]

Your mpg est seems high.... Spot estimates are not near as accurate as writing down
the mileage and # gallons put in on a regular running basis, and doing the math....
It all comes down to physics, 4,000 lb car, 400+ CI motor 6~16 mpg is what I would
reasonably expect on average, running, not spot, and the gauges are for the most
part not linear..... The upper 1/4 on my mustangs always looked on spot checks
like I was getting 25~30 mpg on my modified but non VV carb....

For gas mileage on a standard 4V carb, doesn't that one have those screw in gas
jets at the bottom of the fuel bowel....? You probably got 54's or bigger....
47 is the smallest, and then they are brass, you could solder a wire and stick it
down the center to make the hole smaller..... I did it on my stangs, did a little....

Good work on the window guide.

On those miles to empty computers, you gotta check to see what the design idea
was, to try and guess if they are actually worth anything or not.....

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