I set the idle mixture as listed in the rebuild instructions, bottom out than turn back 1 1/2 turns.

I just went out and looked at the idle set screw and it was screwed in all the way. Roughly how far should it be screwed in? I know it should be set with the engine idling, but I'd like someplace to start.

Is using propane or starter fluid the easiest way to test for a leak around the manifold?