mopar motor

question don't now were to or what to do here so please help ,thanks first i have a 73 ply scamp, a-body k-frame. I have a 440 motor just setting in place, at this time i have only (1) stock exhaust on at this time,by the power break side. the other want go on.do i need to get rid of the power booster, and power steering, in order for this to work,every things seems to work at this point, i used elephant ears, so would that be a problem.all works out ok with them.thanks for all your help hope i have put this on the right post. if not very sorry .i'll try to find some one who can help me thanks folks
mike