What bolt ... the one at the back of the head? Those are tough! Or the bolts holding the smog pump on the bracket. I seem to remember having to remove the pulley before you get to one of the bolts.
I had found a webpage or someone gave it to me giving in details how to remove and plug all the smog pump stuff. I'm going to be doing that some time soon I already have my EGR pluged off now all I need to do is remove my smog pump LOL. Cuz right now its not really doing anything. I just know its going to be a pin in the ass to plug the holes in the back of the heads. I almost want to wait until I have some new heads and get som AFR ones that dont' have the ports for the Smog crap LOL.