My turn to ask for help with a Holley.

If you posted some symptoms we could dig up more info. If he has two carbs acting up, that sounds like something other then the carb.

The Holley has sat for quite awhile so he wants it gone through.
That one is going back on a built big block 440.

The Edelbrock 1405 with electric choke kit he just rebuilt but it drips from the boosters no matter how he adjusted the floats.
I'll be looking over the brass floats for leaks and the needle and seat really well.
Also be testing that one with fuel pressure and make sure all the gaskets are right.
I asked if he made sure he put the accelerator pump check ball and weight back in and he described it in detail.

Thanks for taking the time to give your thoughts on it.