Plug and play kit??? I have the best kit they sell with the Drag Kit Valve option. Yes on the R1234YF. I tried the 134 and cabin temperatures were horrible.
Compressor is still working since June and install time was 8hrs. I had a shop install it that did 5 before mine. I'm out in the car tonight and the AC is ice cold in Mexico.
Haven't been to the track since installed but while in Mexico I'm seeing about 20 degrees over ambient at the end of a pull. Afterwards in just a couple of minutes the temperature comes right back down.
Used the AC when I took the car out over the summer in 99-100 and it worked fine. AC works all the time with a Killer Chiller. Change the temperature setting and where you want heat and that's it.