I run tall air cleaners and the vent tube in the holley carb is a standard diameter, not sure what that standard is but I found a stainless tubing of the right od and cut a few longer pieces off it.
I then installed a drill bit in the existing vent tube, grabbed the vent tube with a pair of vise grips and using a twisting motion pulled the vent tubes.
I then installed the new longer pieces with a soft hammer tapping them in.
This solved my flooding problems on hard cornering.