<VV> Zinc oil additive question

[Markpowhatan at aol.com]

While in a auto parts store today, I noticed a Lucas oil display with  a 
Zinc oil additive part #10060 for use in break in of  new cams with flat  
tappets. It recommended use for only first 1,000 miles due to catalytic  damage 
results.  Can this be the same oil additive currently sold by "our"  well 
known parts suppliers, and would it be good for continual  use?  If so, how 
much of this for 1 oil change in the case of our  Corvairs?  It came in 16 oz. 
bottles I believe.   Has anyone any  information about this?