How do I seal my windshield on 67 Barracuda?

I have a 67 notchback Barracuda and a new windshield with the old gasket. The windshield is just set in there at the moment but I need to seal it and don't know what to use. I had the gasket out and cleaned it pretty good with laquer thinner so it's usable. I know there's some type of special windshield black snot but not the 3M stuff. Also, exactly where should I use sealant, between the gasket and body or between the gasket and windshield or both?

I do have original style lock strips which will go in last. Any windshield guru's out there?