Red line Port-O-Walls, anyone know?

Check with diamond back classics

They will do red lines on drag radials.

My redlines are from them. They can do tires up to 20"

I thought about doing drag radials for my dart, but don't need them the Firestones grip better than I want...........LOL

These are not port a walls........I know what they are but to young to have ever used any, but they might be able to hook you up.