Emission Systems For Cars And Trucks Cheapest Parts On the Web

These are the things I've replaced on it.

new exhaust from the headers back (2 1/2" flowmasters and bbk x-cross pipe)
motor mounts
spark plugs and wires
valve cover gaskets and upper intake gaskert
chrome door handles
whole clear front head lights
fog lights
a brezel over the stick
vaccum lines
a new thermostat
fan clutch
fan blade
windshield
front struts/shocks
transmition mount
floor mats
water pump
clutch kit
clutch cable
timing cover gasket
MDI coil
starter
MDI ignition control
MDI distributor cap
Battery and
thermostate

I paid 3200 for the car and put about 2000 in it. I know I'm not gettin what I put in it but what should i get out of it.
The milage is either 222000 or 122000
the guy before me said there was a lot of high way miles on it. But the car runs very strong. W/ nothing wrong w/ the motor, no nockings or anything.