Carb Hysteria

Ive tried 2 bbs and 2 1920 then got a 1945 and was able to get it to run really good and perform well. i think i steped up the jets but cant remember what size but they share the jets with the 4150s and 4160. I couldnt find jets for the bbs and couldnt lean it out. the 1920s leaked bad.