i suggest taking the plenum off first then removing the intake manifold, made it easier for me, and the AC pump bracket has 1 hidden nut in back of the bracket olny a wrench fits in there

 

if you do do this yourself, dont skimp on gaskets. they might cost more, but if you had to do it all over again to fix one little rip that causes an intake leak, you will be kicking yourself in the butt. Fel-pro, the only way to go!

 

^ x2 Do it once, and do it right!