Craig,
I noticed the same thing. Then I went back and read he is adding an Accusump.
Having been there, done that (zero
oil pressure in turns with a Canton "road race ha ha ha pan") I opted for an Accusump made by guess who? Canton. What a coincidence. The good news is that it works!
He should be fine.
RuneS,
I've used Castrol 20W-50 mineral
oil for 26,000 miles of mixed street and track use. The engine is fine. I do change it and the FL-1HP filter before every track session.
Tom