Correct Oil to Use

Valvoline VR-1 10w30 here...with my high-volume oil pump I get 50 psi cold pressure and 25-30 psi @ idle when HOT (900-1000 RPM) with the preferred 10 psi/1K rpm climb in pressure afterwards...

My main bearing clearances were: 0.0035 and rod bearings were: 0.0018 with 0.012 side to side clearance.