I have a 1979 monte carlo with a 4.4L engine, it started misfiring recently so i nearly changed every part of the ignition and fuel system. Plugs, wires, cap, rotor, coil, fuel pump, carburetor, and egr valve are all new. I can not find out what is wrong. Please help!

There are several potential issues that could be causing your 2005 Chevy Monte Carlo to spit and sputter while driving. Here are a few possibilities:

1. Fuel delivery issues: If your engine is not receiving the correct amount of fuel or air, it can cause hesitation or rough idling. This could be due to a clogged fuel filter, a malfunctioning fuel pump, or a problem with the air intake system.
2. Ignition system issues: A faulty spark plug, ignition coil, or other component of the ignition system can cause misfires, which can make the engine hesitate or sputter.
3. Emissions system issues: Your vehicle's emissions system is designed to reduce harmful pollutants in the exhaust. A malfunctioning component of this system, such as the oxygen sensor, can cause the engine to run poorly.
4. Electrical issues: A damaged or worn electrical component, such as a sensor or relay, can cause the engine to run rough or stall.
5. Transmission issues: If your vehicle is experiencing transmission problems, such as slipping or shifting issues, it can cause the engine to hesitate or sputter.

To determine the exact cause of the problem, it's best to have your vehicle diagnosed by a certified mechanic. They can perform a diagnostic scan to check for any error codes or issues with the engine, transmission, or emissions system.

The ignition module is the brains of the ignition spark system. If it is going bad, usually the most common type of problem is a stalling situation/no start until the module cools down and then may restart. Sometimes the modules fail and the engine will not start. It can also give the problem of the engine misfiring.

If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs, if spark everywhere, use a gage and check fuel proper fuel pressure. Check fuel injector pulse.

Check your security system.

injectors

Sound like a lack of fuel. Since you have replaced most of the ignition parts, I would look at the fuel system next.
Could be a clogged fuel filter, weak fuel pump, or pump relay.

If the code is 301 it means there is no power from that cylinder. It could be a problem with the ignition, fuel injector, or something mechanical.

it is a good place to start, replace ignition wires and plugs, for that year 3800 i recomend autolite iridium plugs and premium 7MM wires.
once you replace the parts erase the code and see if it returns.
cylinder 5 is the 3rd counting from the left on front of engine.

Have you bled the fuel system? There is a schrader valve on the fuel rail, you need to bleed the air out of it if you have not done so already.

i had a similar problem with my 99 monte 3.1 i replaced the coil wires and plugs then i looked at the fuel injectors and they were clogged causeing the car to throw codes about missfires, take a look at the injectors and try cleaning them

check codes first. But sounds like crank position sensor mine does it all the time