Holley 1920 Replacement Question

I'm not wild about the 1945 either. I agree with Dan, the best of a sorry lot is the Carter BBS if you can find one that some gorilla hasn't been twisting the screws. 2nd choice is the 1945 if you can get an early one with relatively little in the way of smog features and a distant 3rd would be the Holley 1920. Those things are a fire just waiting to happen.