VR1 Racing Oil (VR1)
The #1 selling racing motor oil. High zinc provides race-level protection for any vehicle.


High zinc/phosphorus provides extreme wear protection, including flat tappet applications
Additional friction modfiers to help deliver maximum horsepower
Enhanced anti-foam system protects engine during extreme stress
Compatible with gasoline or alcohol fuels
Available through leading auto parts retailers

http://www.valvoline.com/products/consumer-products/motor-oil/racing-motor-oil/6

valvoline says it has high zinc protection for flat tappets...and available through leading auto parts retailers...

been using the 20w-50 for several years now..with solid lifter cams..