I have a stock intercooler setup from a 88 Daytona in my 85 GLH-T. I know it's not the same as the GLHS, but my hose setup may work. Using the stock bottom hose for the Daytona with a bit trimmed off each end (Gates 21674). Top hose is from a 88 Caravan 2.5 TBI (Gates 21413).