What motor oil?
 

What oil is everyone using?

I am currently using Valvoline VR1 Racing 40wt in my SBC's
Does anyone have any better suggestions?

Good as any if you don't want to run synthetic. It is a great choice fo regular oil,,, and yes use the staright 40 weight.

ummmm...high zink content

I run Kendell GT-1 40wt in mine 330hp. Charlie

Mobile 1, 15W-50
Best bang for your Synthetic Buck.

I used kendall racing oil at 1st must noticed a condensation problem. After using penzoil racing oil, that white crap went away after the 2nd oil change. The engine's been apart and the bearing were as brand new.

I have been told that synthetic is to "slippery" if you are running a roller cam and lifters and will cause the lifters to not roll on the cam lobes. Anybody else been told this?

Amsoil 10W40 Synthetic.

Yes! I have. I've been told by a couple of engine builders that synthetics are too slick when running a roller cam (solid or hydraulic). I don't really know how true that is though, however I do run a mineral based Valvoline straight 40wt oil that with my hydraulic rollers.

Thrillseeker......I'm running the same, (Val Vr1 40wt), and so far I like it alot.