my front brakes will not hold the car, if im doing a line lock assisted burnout or they wont even lock up when i totally slam on the brakes from 50mph. im almost positive my master cylinder isnt big enough to push the big calipers. being a 65 coupe, clearance is a BIG problem and i cannot find another master that is small enough to put in there. i currently have a booster in there and my question is, could i go with a non power master that has a larger bore to solve my problem? is the booster needed?