Ditching a quick fuel carb.

So what did he do? I'm curious.
Plugged power valve off, rejetted it, plugged vacuum, turned the choke all the way down next to nothing or off I don't remember, and put the timing around 22 I believe. He left the floats and fuel pressure where they where set at.
I had to take it back a couple of times before he got it to stop fouling plugs, but it runs like a scalded dog. He says I may need to look into a different clutch, it's hard to find the sweet spot when I feather it out it chatters and churps the tires if I don't let it out just right. I may just need to get used to it and drive it a little more. It's a new mclead clutch and new mclead flywheel.
I don't know if what he did to get it to run right is the proper fix, but it works.