We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common ! Just start by posting a note introducing yourself to the group, that's all it takes here (we don't ask for or retain any personal information here, because our intention is to just "have fun and share information".
My chris crafts mechanicals (AFBs) are pretty much wide open. They may partly close under about 50 degrees. As Paul said, I give mine 2-3 pumps, then the engines start right up like they were fuel injected. I leave the idle at 800rmps for 5 minutes, then no problems. But then again, most of my boating is during 90 degree weather.
The electric choke holleys on my supercharged sprot boat engines were more problem than a help. The SC surging made them run a bit rich at idle and after a breif cool down the chokes would re-engage even when they were not needed. Result, fouled plugs, so I disabled them.
My 68 corvette has a big cam and had an electric choke holley. Again, rich running with the big cam made restarts after short cool downs very rich. Even that on is removed.
I use the same starting procedure on all of them with no problems.