Hey JRIPPE, welcome to the site!
First off, we can better help you if you post up what year and trim model your bonneville is. Please put this in your signature so it stays with all of your posts.
Secondly, there is more involved to adding a supercharger to your car than just bolting one on. There are mixed reviews on this process because the n/a 3800 has different compression ratios and internals than the supercharged model.
Please abuse the "search" button and you will find plenty of information
Lastly, welcome to the fourms - the people around here are extremely helpful and willing to share what they know!
'00 Oldsmobile Alero GL
'92 Buick LeSabre Custom
'95 Pontiac Bonneville SSEi (sold)