I've always run the 1206 or the 1206 S-3, but now need .120 thick. 1266 is "composite" material, anyone know if it's OK with alky?

I use felpro 1263 and have to trim them to fit my engine. Have been for 15 years now. They are composite material. I have not had any issues. Personally I like the composite material better than the silicone coated.

Scott

Thanks a lot Scott!