This is my '81 242 GLT. it has a b23e engine with the K cam (136hp when stock). For handling it has Lesjöfors springs, Bilstein HD shocks/struts, poly bushings, and 25 mm sways front and back. For power a 2.5" single muffler mandrel bent exhaust, and Megasquirt engine management (originally K-jet MFI). Other mods include Recaro seats, adjustable panhard rod, adjustable torque rods, and an adjustable short throw shifter. Still much to do, but it's come a long way from a car that shouldn't have been road legal when I purchased it.