1996 Dodge Avenger

I have a 96 Avenger when A/C is on car runs rough and when its off it runs better but Revs high in both a/c and without A/C can you help any :banghead: :screwy:

also this is the work i put in
changed alternator 130$
PCV 12$
battery 70$
wires 42.00$
plugs 10$
Belts/2 73.00$
t-stat 12.50
flue filter - could not get any from local part stores got one for a car that i dont know for 26.00$ did the job

thinking next is

flue injectors
flue pump
struts
complete brakes

Have a vac leak or the IAC is out to lunch and dirty