Since I've had my 85 IROC, I've experienced, as many others have, air flow problems--air directed mostly through the defrost vents. Maddening. I was at my local GM dealership this morning, however, and happened to complain about the problem to the parts man. He advised taking the vac harness off the rear of the heater controls and dabbing the small black plastic fittings (the ones the harness fits over) with Vaseline. I did. FIXED! All for a $1.11 for the Vaseline!

JamesC

------------------