I am using a .120 needle and seat, so move to a .130?

So is the intent just to put more fuel in the bowl? If so, could fuel pressure or float height be moved? Remember I am trying to educate myself.

'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119

"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"