On my 56 the choke was the one nearest the column, most times 2 out of 4 of those holes have delete buttons(hole plugs). The design of them is specific to GMC.
As far as a Harness kits, there are many posts recommending anywhere from the $150 -$450 range. They all get you wired.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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