Wolfs head 10w30 zinc content?

[cronk]

I am looking at getting a chevy 350 crate motor for my 86 Firebird. Nothing wild, just a stock type replacement with flat tappet cam. I am looking for a good break in oil and saw the Wolfs head claims to be a heavy duty oil. I can get it cheap at Sams club and was considering running it for the first couple oil changes. I can't find any info on the zinc content and if it will be enough or if I should use a zinc additive.

 

[Gabe]

http://www.pqiamerica.com/Janaury 2012 test results/wolfshead.htm

 

[mechtech2]

Use an additive for break in.
And maybe a reduced amount for normal running.

 

[bullwinkle]

Not an HDEO, the Rotella T on sale at Auto Zone, or even the QS Defy 10W40 from Wal-Mart would be a better choice.