with those parts you got, you're most likely not even going to to have the whole '72 HP drop you spoke of... most aftermarket parts like that make the parts generalized to fit all years, and because so they'll have removed the HP drop you would see using a stock setup.... make sure to do as you were advised and check if your cam is already advanced... if not, you can advance it the 4 degrees with your timing set, but i really dont reccomend doing that, because if you do have problems, then you gotta pull the whole front end of the engine apart... thats the one thing i dont like about fords