Re: 78 K20 Gas Milage Suggestions
x2 on the timing, for the last few weeks I have had my timing at 8 degrees for my smog test and I noticed a pretty big hit in gas mileage, when I usually have it at 14 degrees I have way more power and I usually get around 12-14mpg. I would not change anything to "help" fuel economy usually you will never regain the initial cost of headers or a overdrive transmission. Also make sure your carb is dialed in correctly, choke works properly ect.
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