Holley 20-59 Quick Change Vacuum Secondary Housing Kit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>For vacuum secondaries</li><li>Eases changing vacuum diaphragm spring</li><li>Allows diaphragm cover to remain in place</li><li>Includes necessary hardware for installation and use</li></ul></div><img src="http://ecx.images-amazon.com/images/I/510BVK3Wt8L.jpg" noproxy>