hey Cr0wbar,

first step to figure out your problem is to download service manual. use the manual to troubleshoot specifically in AC section.
then buy a multimeter as you would need it to troubleshoot.
i had same experience as you, lots of power loss but i thought it was because my small displacement engine (1.5ltr).

http://www.spoonertuner.com/manuals

and lastly, welcome abourd!!