Used to peak at 8.7ish psi and now it won't even hit 7. Probably a nub question, but is that supposed to happen or did I spring me a vacuum leak during the install? I have a 3.4 and pcm to be installed just being lazy right now...Also a 3 jaw pulley puller is what I use for the pulley right? Others have told me to use a 2 jaw one but I'm a little leary on that.