At my wit's end

I had the same problems with the two Holley 1920s (leaked gas everywhere). I tried two different Carter bbs but they ran too rich and hard to find parts. Most people don't like the Holley 1945 but I took one from a 74 dart, put a kit in it, and stepped up the jets a few sizes (same as the 4150/4160) and it runs great. They have a similar design to the bbs so the gas level is below the gasket. If you do seek one out be sure to grab all parts to the choke (rods are different) and air cleaner as the one for the 1920 and bbs wont fit right.