Seller notes

This is the ultimate Adjustable vacuum relief valve made by GZ Motorsports circa 2005ish, no longer available to my knowledge. Valve cover mount designed to compliment their other Billet lock on breather assemblies. You can vary the opening start point and max vacuum point by installation of washers under the head of the .25" bolt. Picture included from the way back machine of web archive for 2005, price at that time was $164...

Contact Us regarding this vehicle

Contact Seller on eBay

You will be redirected to eBay

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.