Thermoquad idling issues

Removed carb and set transfer slots a little over square. Replaced o-rings with some viton 3/8 1/16 thick. Reinstalled carb and it runs good at 2 turns out on the idle mixture screws now but still pig rich at idle. And hard to do a hot restart without holding throttle halfway open, then comes the plume of smoke. There is a whistle at idle and I found it coming from the primary shaft on the passenger side. When shutting the car off I get a few drips from that same shaft location.

The shaft doesn’t feel like it has excessive play at all. But all the Teflon coating has been removed by the company that reman’d it.
Also the box said it was a 6138s but after measuring the primaries and looking closer at the half ground off number it’s for a 440 stationary engine. A 6518s Thermoquad. I doubt that has anything to do with the rich idle. There is zero drips from the boosters when running. I took a video but need to figure out how to post it.