yes the small bit of use I gave them they seemed fine. no visible leaks anywhere. I remember my dad doing something with a brake booster for vacuum but it was on a chevy so I didn't spend much time looking at it going thru it.
i thought about that way after the fact. just unsure of what im looking for. ive been reading the 3000 page Chrysler service manual. I feel like im chasing my tail and missing something dumb. I need to yank anything emissions related and dumb it down.
it does have an egr valve, I was curious about that myself. when the rain passes im going to go mess with it. I got it running long enough to move from one garage to another and left it out to wash it. it hasn't been on the road since 2012. stored indoors.