brake booster with a big block?

[vette mon]

Hey guys,does anyone know of a power booster that is small enough to fit a 69 with a big block,i am putting a big block in. I also am running moroso welded aluminum covers witch are massive,I looked into some hydraulic setups but they are high dollar. I have also seen some c3's without power brakes,has anyone tried this and does it suck as bad as i think it would,any help would be cool this is my first vette and i am trying to think of problems i am going to have with this conversion up front