I recently bought a 1999 GMC Suburban with a 454 motor and want to get some more power out of it. I looked at several web sites such as Jegs and Edelbrock but they only list 454s up to 1995. I can't even find a site that will give me supercharger application that will work on my Burb.... Does anyone out there have any feedback they can give me on where I can start to look for these types of improvements? Any help would be appreciated.