Thread: Trying for better milage

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Unless you have a 500 CFM carb laying there ready to install it would take you about a zillion miles to recoup the cost of a new carb with the minimal mpg gain you would get.

As others have said, getting everything else in the engine tuned and tweaked for mileage and adjusting your driving habits would show you a better return on the money invested.

Your biggest return on the dollar would be to ride the bus to work.......

I just went from a 500 Carter to a Quadrajet on my Pontiac......much better mileage with the Quad...........But, then again, the 500 could have used a rebuild.

The carb is actually the last thing that causes low mileage, assuming it's set up right. Cam, C.R., gears, firm skinny tires, wheel alignment, brake drag adjusted out, all make more difference than you'll gain from a smaller or different make carb.