vacum required for power brakes

[Kevin71]

How much vacum do you need for power brakes to operate.  Going to change my cam and thinking of a Xtreme Energy Hi Lift  Want to make sure the brakes will stop it.

[72bluNblu]

From what I understand, the power brakes are spec'd to have 16 inHg. They still work down into the 12-13 inHg range, but that's pushing it.

I'd just lose the power brakes. I have manuals on my Duster, and I prefer them to the powers on my Challenger. Stopping is the same, the manuals take a little more effort but offer a much better feel. Not to mention the extra room under the hood to get at those rear spark plugs.

[Chryco Psycho]

If you have power steering I would use a hydroboost unit , easier than swapping cams & far better braking to boot

[Kevin71]

Want to sway a electric vacumn booster for a hydraulic.  Can't stand the electric makes way to much racket.  At this point i wished I would have done that in the begining.  I think it's going to be hard to find someone that wants one of the electric ones.  But I also have a manuel  wildwood master cyclinder.  I have tried selling stuff in the past and you just can't much for it.  Hell I even have a 2012 rt hood I need to get rid of and just can't seem to bring my self to take to a recycle center.  Put a TA hood on.  Can't find anybody to even give $200 for it.  Sitting in a warehouse costing money every month.  I have called a bunch of auto body places and none of them want it. So goes life the missed oportunities.  But if you own a mopar there is nothing to complain about.