For what it's worth if you want a nice finned alumn Ford Raceing valve cover look on the Vintage 6 Mustang facebook forum & contact Jose Alveraz he can get them from Argentina along with the Argentinean 221 head( sometimes, he just sold one a few days ago ) that fits the small inline 6 Ford engines .
Jose is a stand up guy & that valve cover is one nice thing , it's a quality item .