Thread: 5-6 MPG
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Old 12-19-2020, 1:06pm   #20
Mick
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Quote:
Originally Posted by Strats-N-Vettes View Post
5 or 6mpg is indicating a problem...have you checked vacuum or rebuilt the carb yet?

The cure is better heads, 3.03 gears in diff. (if not already there).

If you want even better:
aluminum intake
carb spacer (for heat dissipation)
better cam
better lifters
2.02 heads
4 speed auto trans
3.03 gears in diff. (if not already there)
So important, he typed it twice.

I'm pretty sure my 'vette has 3.08 gears out back. That should give better mileage than 3.55, but nowhere near double the mileage.
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