You need to stop the flow from the other direction if you bring the flow in from the front.
And BTW, that won't fix one single oiling issue. I've posted so much on here about that topic that I ain't doing it again. The oiling issue isn't about where the oil comes from, oil velocity, crossover tubes or any of that other bullshit.
A 1960's SBC will oil itself to 10,000 RPM's plus and not have bearing issues. If you want the truth, study a SBC and then figure out how to copy that.
Anything else s either bullshit or lies.