68 Barracuda power drum brakes,peddle hard.

I will mention that every brake part on the car is new,this is how I bought it.The PO had everything done by a licenced mechanic(his neighbor).I guess I,ll have to pull the wheels and check everything to make sure alls good and might aswell bleed the system just for piece of mind.This way atleast I,ll know it was done and no air in the line.It could be just me being used to new vehicles,cause I drive new vehicles at work every day.We,ll see?Thanks for suggestions.