Primary throttle angle

[Bills64]

I have attached a pic showing the primary throttle angle just before the secondaries start to open. Is this the proper angle?
Thx

[Kenth]

I have found this adjustment works as intended.
When upper end of link just touches the tang, the lower part of link should be in center of slot.
Bend link to adjust (do not bend the tang as you´ll see in some instructions).

HTH