I am considering installing a Comptech supercharger on a 1991 and have two concerns. First, how are drivability and reliability impacted? Second, I currently take my car out to the Moroso road course and run it hard for 1/2 hour or more at a time for 100 to 150 miles a day. Will the car hold up under these conditions? Do you use a lower shift point with a supercharger? Thanks!