Engine case question

[Eliasson]

Hello has anybody open up this passage in the case. Its a quite small hole and a it would be a benefit to use the hole volume of the case. This litte would act like an orifice if the pump needed oil and it would be much better circulation in the case.
If it get stucked for some reason the oil would reach to the bottom of cylinder 3 befor it flood over to the main gallery of the case.