[Daves55Sedan]

BTW, HRR, I made gaskets for the Magic-Air horns, both front and back flanges cut out of roofing felt (tar impregnated). Use the flanges themselves as a template, then mark the hole locations with a pencil and stamp out the holes with a hollow punch. For the duct that goes behind the riser wall on the fender apron, I cut gaskets out of 1/8 inch thick foam sheet. Again use the duct flange as the template and same hollow punch for the holes. This is a better seal since the metal in this location can be a little bit wavy. Actually, I duplicated the foam gaskets for the elbow duct that bolts to the cowl also. After bolting the elbows on, I used Grundy plastic cement to seal up the bolts so water won't get thru.