valve covers

[jp51mustang]

Should I buy tall or short valve covers? I've installed roller tip rockers and a new cam but other than that my valve train is stock. Is there a benefit to one or the other? Clerance issues? It's a 65 289, and I've got an Edelbrock intake manifold and may one day want AC. Thoughts?

 

[Max Power]

I have Edelbrock chrome VCs, and they clear full rollers, and aren't too tall. Really tall VCs create space issues when changing plugs.