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What's going on with the mileage? what eng yr make model gears timing choke recent work, everything. Recent issue or always there. What MPG



The truck is a '81 2wd slant 6 auto. It has the lean burn on it. The vacuum pot wasn't working. I replaced the distributor yesterday for one with vacuum advance that's actually working. I also rebuilt the carburetor, but the carb seemed ok. The gears seem to be likely 3.55s. I was getting 11 mpg.
Hopefully these changes will help. I have an msd 6al that's going on it as well. I may just order a jet, so that I know what's in it. I don't have drill bits that small.