This got me thinking..
According to this chart, the recommendation is 5w30 or 10w30 at my oil temp with .0032 mains
I went with 5w50 as a guess on my part and I know someone else with same lifters that`s beem running the same with no issues.
That 10w40 redline will be the ticket.
As a side note, Ive never used Redline but it`s my favorite oil now.
Over the last 10 years and several different engine configurations I`ve tried Driven, M1, Amsoil signature, VR1, PennGrade and the Redline holds up the longest before I start losing oil pressure (M1 will come out water thin after 5hrs) and it`s the most consistent and higher oil pressure.