When I drive my car at any type of throttle at 2500rpm or lower, the car sputters as if it were misfiring. And it only does it on idle when the a/c is on. My a/c also at times does not cool properly. All cylinders are firing. Plugs wires and dizzy have been replaced. Problem started two months after the car had been sitting for 5 months. Could this be fuel or timing? And if so, what should the timing be set at?

 

Floor it from a stop uphill and see if the motor bogs out. If so, you probably have an ignition problem. See if the problem gets better or worse with the car heating up, ignoring performance during fast idle.

If you don't have a timing light, autozone lends em out with a deposit.

 

All the wires are getting spark but idk exactly how much.
I punch it from a stand stil and it bogs a couple times until 2-3k rpm and it will rev fine anywhere above that mark.
How often are wires changed?

 

You can check your ignition by getting a spark tester or:

Performing this test at night or in a dark area will make it easier to see the sparks. Warm the car up completely to normal operating temperature or as hot as your motor gets. Ignition components are affected by heat and problems with those parts may not show up until the engine is hot. Disable the fuel injectors by pulling the fuse or disconnecting them and get a new or known good spark plug. Set the gap of this plug to your vehicle's specifications and make sure it is clean afterward. Wear gloves (welding gloves work great), preferably with latex or nitrile gloves underneath, and remove a spark plug wire from its plug. Connect the good plug to the end of the wire. Hold the plastic deep-well tube by the rubber boot at the tip of the wire end with the threads of the plug touching clean, bare metal on the valve cover. Have an assistant watch you during the test so that the starter can be turned off immediately if need be. Tell the person to crank the motor while you watch the spark, carefully keeping all body parts as far from the plug, motor and metal body parts as possible. You're not just avoiding touching the source of the voltage, but also any grounded metal. Different types of plugs have different colored sparks but usually a good spark is a thick, strong flow of bright pink or white. Little "lightning bolts" indicate a weak ignition. Check all four wires. If the sparks at all of the wires are weak, try holding the threads of the plug against the battery negative post to see if the better ground makes a stronger spark. This will test your entire ignition.

You follow a similar procedure when using a spark tester. Did you replace the coil and ICM with the distributor? Make sure your grounds are ok. There should be no resistance between the valve cover and the battery negative post when checked with a meter set to ohms.