I was able to find a service manual for my acme, it tells how to adjust the carb screws I believe:
https://s3.amazonaws.com/bcs-america/manuals/Acme-215W-290W-330W.pdf
but that is NOT how I was able to get my tough starting engine to fire up. I got a deep socket metric set at harbor freight, picked the one that fits on the flywheel nut, got a 1/2 socket adapter with round shaft that I can lock into my milwaukee cordless drill. THEN I put the drill in the freezer so it can spin better before it "overheat/overload protection" cuts out (thus preventing me from starting). Then I put in on fastest spin setting number 2, on drill setting, slowly pull the trigger with choke on full, pull the trigger more and more as it speeds up!! and once it starts firing I take off the choke and repeat, and I have gotten my tough starting engine to start. And once it gets running it runs well, don't notice any missing or sputtering. It's pretty weird.
Thanks for posting the service manual. That's going to be a big help in figuring out how to get this my engine started. I'll try out the power drill technique