73 duster with 440 wanting to fit brake booster

My guess is that if you could fit the booster in it with a big block, you'd never be able to remove the valve cover if you wanted to! Have a friend with a 500 inch motor in a 68 dart and he told me I was smart planning on staying with a small block! LOL! I have a fresh 440 in the garage that I would love to put in my 70 duster but I want to run power brakes too!