So when I got my engine rebuilt, the engine builder recommended VR1 10w-50 Racing Oil because of the zinc content. I have since changed the cam from a flat tappet to a roller cam with a roller lifter kit.
So should I change to standard motor oil now? I've got about 5000 miles on the engine since the rebuild. What should I be using? For what it's worth, I've been using the Baldwin filters.