Try these:
Cobra Valley's S/T Small Block Valve Covers
Note that they are available in different finishes.
I tried the Branda tall valve covers on my 420W which has stud girdles and they would not fit. I think they would have been tall enough except for the stud girdles.
As for the definitive answer, try this. Take some measurements on your valve train or your current valve covers to see height you need. Measure say, from across the gasket flanges to the bottom of the baffle. Then compare that to the same dimension on any new valve covers you're considering.