brand new holley valvecovers

Hey I got a 318 in my garage and one in a 1981 Gran Fury..are those the same height as the Mopar Performance ones...it has a brake booster and they Mopar ones will rub it if I don't do some grinding..do you have more pics of the bottom sides..if so pm me and attach the pics..I am really interested especially if they are shorter...measure on a flat surface to the highest point on the top of them please