I bought several boxes of mustang parts, mostly 69 cobra jet stuff - but also included was a vac tank (like the ones mounted underneath the pass hood hinge) and this item. The only numbers on it are on the relay (c8za-3e553a) and on the black plunger (Ford on the bottom, and # p-90451-330) I've researched several forums, including this one, and cannot find info on this item. I did find several threads on the vac tank here...thanks for that. I looked on ebay, current and closed and cannot find any info.
My 69's do not have this option nor do I want to add it to them, so I was hoping to research the parts to make sure what they were from, and their value. Can anyone help? Thanks!