Harbor Freight sells a "Fuel Pump and Vacuum Tester" that is on sale for $9.99 right now. It reads from 30 inches of mercury vacuum and up to 10psi. I mounted mine to the blank spot meant for the air suspension switch and its perfect other than not having a backlight
As mentioned here http://bbs.legacycentral.org/viewtopic. ... 77#p378777 (with video)
Edit: For those of you who don't have a store near by here is the website
http://www.harborfreight.com/fuel-pump- ... 93547.html
9.99 boost/vacuum gauge for those running stock boost
Moderators: Helpinators, Moderators