Would it be a better Idea to sell the VC's and get some that would clear a brake booster?
Ford CJ covers and 1966 Merc Pentroofs have a facet designed for brake booster clearance.
Just a thought. How about a picture of your VC's? I've got almost every set made for a FE (except Jays yet)
so I could compare.
Richard >>> FERoadster
I am taking your advice. I'm going to sell the sheet metal valve covers that I bought, and get a set of 428 Cobra Jet "Snake" Cast covers (US made, not the Mexico version) and hand-polish them. I know they'll fit, and then I can keep a dual diaphragm 9" booster instead of sacrificing braking ability.