My MM has had a crazy miss at idle since I purchased it. I've done all the usual things, plugs, wires, cap and rotor, fuel filter, cleaned valve body and even run a tank of injector cleaner through tank with no difference. Today I installed new injectors, still have same weird idle miss...but now gained a little hesitation right off idle. It took a while to get the computer to figure out the idle after the battery reconnect. The truck has 109,000 miles on it and is a '94. What should I do or look for next. Compression or leak down test. Think it is a valve? Its idling at 800 rpm in video.

https://youtu.be/dxoFvMYFbBg?si=ySljmFIhzZ5m1FKy