rebelcowboy50

i got a good question for someone,i just got an intake and injectors and plenum and throttle body off a police intercepter,im wandering if the plenum is better than my stock one,and if the t/b is better,the plenum looks bigger and its more round instead of flat on top,i just wanna know if there is a difference,and somone told me to get the computer from one and put in my mustang,would that do anything since it was a police intercepter?