welcome.
couple of questions to help us out
- how old are you
- is this your daily driver
- what is your budget
- what is your mechanical ability
- what is your goal
The first thing to do is maintenence items. Replace all filters, and fluids, bad hoses, belts. bushings, brakes, shocks, spark plugs, cap, rotor, wires,. Get the car safe and in tune before you do anything further Cost $100-$200 for parts. $200-$400 with install
Second thing is to check the torque boxes for signs of damage and install battle boxes if they are torn. Cost $100 for parts Add another $200 for install.
Third thing is to install a set of Max Motorsports full length subframe connectors to tie the front and back half of the car together. These cars twist like pretzels from the facory and rattle and squeak. You will need to find a good shop to weld them in with the weight of the car on the ground. Cost for parts and install $200-300
The best performance bang for the buck will be to go to a lower set of gears- since its an AOD I would suggest 3.73's- Only go with Ford replacement gears and parts.Again, find a good shop that knows how to install gears properly. You'll want to replace the axle bushings and carrier bearings at the same time. Cost for parts and install $500-800
From there it is all depends your answers tothe questions I asked. See how fast it adds up. You spent well over $1000 already.