I have been thinking about doing the same thing. Basically, I am going to try to run the york on the pass. side of the engine and mount it where my smog pump used to be. I'll see if I can modify my smog pump brackets to work. If not, At least I'll get measurements from them to fabricate some new ones. I have the option of doing that because I don't need to run emissions on my '74. It might not help you guys though. /forums/images/graemlins/dunno.gif
/forums/images/graemlins/thinking.gif /forums/images/graemlins/thinking.gifIf you have to run a smog pump and want to keep your AC, you may be better off running a small heavy duty 12V compressor. You can mount them to the top of your inner fender under the hood, or, they make them small enough so that you could mount them just about anywhere under your truck tucked up inside the frame. I know they make some that are pretty heavy duty and will run air tools quite well. It might be worth some research.