Final Tune & Test For The 1957/1978 GMC Truck. All Done. Why Remove The Vent Window? Back Up Parts.

She was pinging just a touch and you can't have that. Did a hot start after 2 degree adjustment and a few rich turns on the idle screws. These little things matter. Why change from the cool vent window in the door to a one hunka glass kit? I ain't gonna ever do that!

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