I have an 85 and its backfiring out of the carburetor,i just re did the carb,and all top gaskets-intake manifold and valve cover,also put in new water pump and thermostat

I'm sorry, but I can't provide visual images or diagrams. However, I can describe the general order of gaskets in a 1999 Dodge Durango engine from the top going down:

1. Valve Cover Gaskets: These gaskets are located on top of the cylinder heads and seal the valve covers. They help prevent oil leaks from the top of the engine.
2. Intake Manifold Gasket: The intake manifold gasket seals the connection between the intake manifold and the cylinder heads. It helps maintain proper air-fuel mixture and prevents vacuum leaks.
3. Throttle Body Gasket: If equipped, the throttle body gasket seals the connection between the throttle body and the intake manifold. It ensures proper airflow into the engine.
4. Exhaust Manifold Gaskets: These gaskets are located between the exhaust manifold and the cylinder heads. They seal the exhaust gases and prevent leaks.
5. Head Gaskets: The head gaskets are situated between the cylinder heads and the engine block. They seal the combustion chambers and coolant passages.
6. Oil Pan Gasket: The oil pan gasket is located at the bottom of the engine and seals the oil pan to the engine block. It prevents oil leaks from the oil pan.
7. Front and Rear Main Seals: These seals are located at the front and rear of the engine crankshaft. They prevent oil leaks where the crankshaft exits the engine block.
8. Timing Cover Gasket: If equipped, the timing cover gasket seals the timing chain or belt cover to the engine block. It helps protect the timing components and prevents oil leaks.

Not sure what vehicle you are talking about, but backfiring is caused by gas not being fully combusted by the engine and passing into the exhaust system and igniting. So, when you step on the gas pedal, you are probably flooding the engine - I suggest you have another close look at your carburetor. There are also other less common reasons for incomplete combustion (e.g. timing, poor ignition, etc.).

You have leaks in your gaskets. or vacuum lines removed and not replaced or broken in the operation. trace air leaks with propane torch unlit. where engine speed increases, you have an air or vacuum leak.

Probably leaking from the valve cover gasket.

you got oil leaked down the plug holes from the valve cover you will need to buy a tube of ultra grey silicon . try this take all plugs out wash them with carb spray wash the spark plug holes out with rag twisted onto screw driver and gas ect ok when dry put a little smear of the ultra grey onto the spark plug threads near the center of the threads all the way around then screw plug into hole let it dry do all the plugs this way it should top the miss if it come back and theres more oil in the spark plug tube hole youl have to take the valve cover off and clean the gasket with gasoline or carb spray dry the gasket off then clean gasket groove on pan and dry it with rag (tee shirt) put a smear of the ultra grey silicon (get at autozone ) all the way around the gasket both sides wash the head where the gasket go's (seals)with gas or carb spray (also nail polish remover ) put valve cover on see that the gasket is in place proper befor tightening the cover bolts

From a quick search online and reading a little in some forums, it looks like the transmission fluid has to meet certain specs, and there may be only a few aftermarket fluids that do. Probably need to check to see if the fluid you used meets the Kia specs. You may have to do a drain and fill at least once if you contaminated it with an incompatible fluid.
You can use cheap carb cleaner to spray around manifold gaskets while the engine is idling to check for leaks. If it sucks the carb cleaner in, the idle will stumble and you found a leak.
Valve cover gasket shouldn't affect engine running. Might cause an oil leak, but that's about it.

check the compression,and the firing order.

It sounds to me like there is still a pretty good vacuum leak somewhere, and you should also check for any dis-connected or missing vacuum lines on the intake manifold, at the carburetor, and the large vacuum hose to the brake booster unit and the vacuum valve at the brake booster unit for any vacuum leaks or broken vacuum lines/hoses, and they can be hard to find because cracks in the vacuum hoses like to hide on the under-side of the vacuum lines/hoses especially the hard plastic ones. Also the carburetor could be loose or the carburetor base gasket could be damaged, the EGR valve gasket could be damaged, or the intake manifold gasket could be damaged, and these are all the most likely places to suspect a major vacuum leak.

If you have your intake manifold over your valve covers you need to remove them. once they are off carefully disconnect as many hoses from the covers as you can and try to mark them so you can remember where they go. next you take your ratchet and remove all of the bolts from the valve cover. Take it off and get as much crud off of the surfaces that the gaskets seat onto as you can. next you take a tube of BLUE RTV and apply a thin bead to all of the surfaces that the gasket will seat into. Put gasket onto it's place on engine block, then affix the valve covers on top of that. Replace bolts and intake manifold if applicable and you are done. Note; follow instructions on the RTV tube or you will develop leaks all over the place.