Removing the vacuum system from an O-300-D --- what to put in place of Vacuum Pump?
I am looking to install a pair of G5's or maybe the UAvionix AV-30's (if they get FAA approval anytime soon). With this, I will no longer need the vacuum system in the C172D. It seems a waste to leave it in place as it is just dead weight (not sure how much, but a few pounds at least).
Removing it seems simple enough, but what do you put in place of the vacuum pump on the back side of the starter adapter?