The original by-pass filter relies on flow restrictors to prevent excessive oil pressure drop. Since you have used a free flow type of remote filter adapter, you will need to add a flow restrictor as mentioned by tclederman. It could be as simple as a metal disc drilled with a small hole (maybe .030" to .060") and captured in one of the compression fittings. I don't remember how the stock by pass filters did this but if you have one, you could dissect it to figure it out. It might have a restrictor orifice somewhere or perhaps it controls flow by using small ID hose.
