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  1. 6

    1991 burb with front and rear ac problems

    So my suburban is stock, 150k ac wasnt working when I got it which turned out to be a leaky compressor. So I got a new pancake compressor, dryer, and orifice tube. Everything installed I pulled a vacuum on it and let it sit overnight. When I hooked the gauges up the next morning... PERFECT...
  2. 6

    1991 350 fuel upgrade...but what about trans (4l80e)

    So the title probably says it all. Im curious about upgrading the lackluster tbi setup in my 1991 (gmc v2500 burb) and Im curious what options exist for the trans. I know that the trans uses signals from the tps and other stuff so if I fiddle with the efi is there a simple way to incorporate...

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