Join Date: Sep 2000
Location: Washington, Michigan USA
You start with a "bench" setting on the idle mixture screws - turn them in lightly to seat, and back them out about 1-1/2 turns. Fire it up and put a vacuum gauge on a manifold vacuum source, and turn the screws individually, working back and forth between the two of them, about 1/8-turn at a time until you get the highest steady vacuum reading (you'll have to tweak the idle speed as you go along, as it will change).
No "sealer" is necessary on the fuel inlet fitting - it seals at the flare at the end of the tube, not in the threads. A little bit of teflon paste or anti-seize on the threads will help get a good mechanical seal at the flare by reducing thread friction or galling as you tighten the flare nut.
'69 Z28 Fathom Green