Carburetor problem.

[67deluxe]

I rebuilt by carburetor ( holley 1920) and now it is leaking gas around the idle mixture screw and out the bottom of the carb around the gaskets when the engine is running. It didnt have a float spring in it when i took it apart but it didnt leak like that before the rebuild.

[67r/t4speeder]

Sounds like float bowl measurement's off. Sticking on needle/seat??

[R/T XTC]

any advice holley 1920 stumbles on acceleration