Hard starting assistance please.

Fuel pressure at the carb reads between 8-12psi. Carb is literally brand new out the box. Once up to temp it runs decent, but it wants to stall in gear even though idle is set too high at idle in neutral
You don't want or need 8psi or more on the street. 4-6psi even 3.5psi is what a lot of running down the hwy 318-408cid uses.fwiw