Heater Hose Clamp Problem

A friend of mine has a 69 Dart GTS 340 with a 70 intake. He has an issue trying to use a correct style corbin hose clamp on the heater hose to the intake. The correct clamp is a little too big and the hose will not fit tightly.

Has anyone had this problem and found a solution other than using a different clamp or black RTV sealant on the hose? He has meticulously restored this engine and wants to retain factory stock appearance.

Any advise?
Thanks, Mike
Author: admin