Thanks for all the replys, like I said, I inherited this walkin is tiny
3x8x8. Had already been converted to 409 so I am stuck with it for now.
Compressor is a hermetic tecumseh, will try to choke down TXV but superheat may be a problem.

Any ideas or opinions on max superheat at compressor?? I am thinking 25-28but still worried about starving evap and overheat compressor.