I'm looking for good gas mileage too and I'm having a vacuum advance and timing problem. Could anyone post a pic of their set-up and/or give me some help here? I posted the problem on the Engine board.
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2009 Silverado 2wd, 121k as of 04APR13. I love my truck 29 days out of the month. The payment is due on the 30th...
Do your duty in all things. You cannot do more, you should never wish to do less. - Robert E. Lee
" Never give up ground you've already taken." - Unknown
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