134a what size orifice

[chris989]

Hello all,
1989 v2500 suburban

While chasing a leak,, I installed a new fixed white orifice and now the low pressure is a little high and it will not pull temps lower the ~60 at the vent.

I pulled out a VOV valve that was a little dirty and did not take note of the color.

I am thinking of pumping back down and installing a .067.

What did others use? How many Ounces of 134 did you use?

Thanks,
Chris