Vavoline VR1 20W50 Racing Oil

anyone have thoughts/opinions on the Edelbrock SAE30 Premium Break-In Oil for High Performance Engines or Edelbrock 10w40 Zinc Enhanced Performance Oil?

I can't seem to find any reviews or technical info on either and am a little skeptical on oil from a large manufacturing corporation

I'm rebuilding my 318 into a 390 stroker with flat tappet comp cam mutha thumpr and dont wanna destroy my engine/cam on start up