supercharged 3.8

Hey everyone! I was back here a few months ago and unfortunately wasn't able to receive responses or fix the issue (trunk release doesn't work, yet the actuator works fine and the lock as well (I have to use key to get in)). If anyone has any ideas in how to fix that, or where the wires to it go...

I'm having a strange issue with my '95 Park Avenue where it will routinely idle low when in park, reverse, or neutral. I recently swapped out the battery, alternator, and starter since the old alternator which was in the car was not charging the battery when I drove; I was having low voltage...

if i were to take the the supercharger off of a 3800SC what would i need to do to my 3800 in order to to get the car to run right with the supercharger? new harness? now ecu? and how would the car run with the supercharger? horsepower increase?

Transmission mount front. For a 1998 Buick Park Avenue Ultra 3.8L Supercharged. They only made a few of these and do not make the replacement part for it anymore. Any Help I can get would be great ! Thanks