My '72 Chevelle 400sbc .030 over and 435hp. At least that is what I was told when buying the car. Now, I know muscle cars weren't supposed to get good gas mileage, but my car still shouldn't be drinking gas like it is now. I have to newly rebuilt qjet on it and runs great. When the car is running, the needle in the gas gauge just keeps on moving. This happens when in "park" or "drive". It doesn't really matter. I was going to change the rear end out of it, but I don't have the garage to do it in. What can I do to get alittle better gas mileage?
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