Has anyone used or know anything about this valve over?

http://www.ebay.com/itm/Thickstun-Chevrolet-6-Finned-Rocker-2-bolt-Valve-Cover-216-235-Inline-Polished/191656488957?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20131003132420%26meid%3D31b9c5d540f4441889598c16a2cd1068%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D191649529973

Joe D.