Delvac synthetic 5w40 is what I would recommend. Anything with the name Fram on it keeps me at a distance. IDK about their oils but the filters are known garbage.
Seems expensive. My FASS 100 GPH was about $650 new. It's considered a step up from Air Dog. I thought Fords with the CP4 already had a lift pump setup.
First 2 years wife and I were married (41 years this week), we were flat broke. I took in brake jobs about 3 weekends each month. 2-4 per weekend. I would have been lost without those SnapOn spring tools. I have spring pliers too but always found them worthless.