I need some valve covers that will clear roller rockers(tall), but will also fit under my power brake booster. It would be great to have factory like holes in them so I could run the stock PVC setup to the air cleaner. The ones I have now look like cheap chrome and I have to use an aftermarket breather that spits oil all over my beautiful new engine.

Pretty sure that these guys make a smaller diameter booster that would allow you to use any covers. http://www.mpbrakes.com/ Their phone number is on their site.

got a 69ss here and the chrome moroso's fit fine, they are on for temporary use, do not really care for the look, but there is no issue with the brake booster,and i think they are as tall as they come would a 72 be any different?
john

If you like the factory look,why not get a pair of repro covers and valve cover spacers? Jegs carries them I believe.