The only mods done to a FHP notch that will make it faster than the average notch is the holes drilled into the dash and the trunk. They will make it lighter. (Of course, the extra reinforcing in the floor pan behind the seat will cancel that out. In other words, FHP cars are nothing special...unless you just wanna say your car was a cop car in a former life. (Works for Corey)

Oh and chips on basicly stock cars usually produce next to nothing as far as noticable power increases.