checking for cracked head or bad head gasket..

well see ive never had the white stuff under my valve cover like I do now...and the only thing i did was change the intake gaskets and front cover..thats all

and I jsut broke my new cam in and when i took the valve covers off there was nothing there, but just the other day i changed the intake gaskets and oil..which is the oil i just drained and now i have the milkly white stuff which is why i think im f$@$ing up