I did the 5.3 swap, and now im doing the YJ vacume booster for the brakes swap....my cj originally had manual brakes, so where do i pull the vacume from on this 5.3. Im new to this motor so im not really sure...

Thanks!

on the driver side rear of the upper plenum. should be a quick connect fitting.

if your hole in the back of the intake is plugged, the proper fitting is GM part # 12559760.

What does this gm part # look like?

Thanks
Anthony