Fuel and ignition revamping (solved?)

I haven't looked at the AVS2. Are the metering springs controlling rods that gointo the main jets? if so, that shouldn't effect idle.
The AVS2 is pretty much the same as an avs but has annular discharge primary venturies.

Will be looking into the bushings.

as for the rest I am able to lean or richer with the screws and I have tried fattening it up a bit at a few different initial timing settings. It doesn’t help much till you get to 24-30*