Heres the problem, and yes I have searched and have not come up with much useful information. So when my car is running at any speed or even at idle, and I go to hit the brakes. I get an rpm surge sort of, my car will jump like 3-500 rpm's every time I hit the brakes.. I believe it could be a vacuum leak, but it would take forever to find..Anyone know where I should look first?
All help is appreciated

 

You got to search ;P I am playing. it is easy to find a vacuum leak get some brake spray with a straw nosel and spray in all the possible leak areas start with throttle body and gasket and joints and once the idle drops that is where you leak is at.

I would personally check your check valve on the brake booster gl.

 

Check valve.

http://www.norcalcrx.org/tyson/pics/braketest.jpg