holley problems

no just a basic rebuild kit i cleaned every thing and replaced gaskets and float check valves but once again tonight on way home i couldnt get it to start and when after several attempts to crank i pulled air cleaner and noticed back barrels where having fuel being leaked in to them so i tapped it on the back side of carb and it stopped so i took out check valve and looked for particles or dirt / crap and seen none cleaned it off and car fired up now im home waiting on sunrise lol