1966 Plymouth Valiant /6 & Holley 1945 carb can only get to idle at 1250rpm. How to get a lower idle without dying?

Alright. Replaced the vac line going from the distributor to the carb. and the line going from the pcv valve to the carb. Miiight be a bit smoother? can't really tell, seems the same. Auto parts store didn't have 1 1/4 hose in stock for the breather to the air cleaner, so gonna get that tomorrow. Will update tomorrow and see if I can get fuel flow in the 1920 or get the 6145 to idle good. Still two footing everywhere.