How large of wastegate hole for 30psi?

[KEVINS]

My new Precision 5831 has a wastegate hole that is approx .93" diameter. I was going to use my 1.125 diameter mill bit but I can't go much larger than the .93 without the mill bit cutting into the scroll on the inside and I can't go wider otherwise the RJC DP puck won't cover the hole.
I plan on pushing around 30psi with alchy so is this hole large enough for this much boost or should I oblong the hole to make it larger?

thnx
ks

 

[bison]

It might be too large already. Id leave it alone and see how steady the boost is at the top of 3rd gear.

 

[KEVINS]

Sounds good, then... Thanks for the quick reply tonight.

Kevin