I used to run an old Carter AFB 625 that I upgraded to Ede calibrations at some point.

My experience was that the Ede float drop setting was good (I don't recall how it compared to the Carter setting) but the float level was slightly lower than the Carter setting, and I had to go another 1/16" lower than the Ede setting to get the mixture right.

Until I did that, it was pig rich from idle up to where it ran out of air at just under 6K on my home brew 302 head 318.