Ah, cool! (other than I feel like an idiot lol) I just went and stuck the air hose on an extra WGA, and now I see. For some reason, I was thinking it was pulled open under vacuum. Manual boost controller operation makes sense now.
1968 Charger project. I don't have a fender tag or a buildsheet, so it's getting a 440. Help me decide on a color--most everything looks great! (NOT white. My Challenger is white. Need some variety :D) 1974 Challenger 360 2012 Challenger R/T 1991 Dakota 5.2