Hard Start Now it Misses

[Bullhead]

Guys yesterday I went out and the car was hard to start, took it like 10-15 seconds. After it started I let it warm up a little then headed out. About 5 minutes later it just starts missing. This happens instantly not gradually. The best way I can describe the miss is it feels like a couple cylinders are down, runs like a Subaru boxer without any power lol. I changed all the plugs and one was covered in oil. I thought I might of had some fouled plugs because I didn't give it a good amount of warm up time. Any recommendations? I have done the plugs, plug wires and the cap looks brand new.

[DesertBMW]

Wrong valve adjustment will do this. Good when cold, misfire when warm. Also AFM can do this, work good when cold, not so good when warm.

[Bullhead]

Mine is missing all the time now, it's cold outside but when the car gets to Op temp it still misses. As I said it done this suddenly while driving too.

[Bullhead]

Well I think I may have some dirty stopped up injectors. One plug is dry so I think the injector may be stopped up. I am down a cylinder and I am getting spark everywhere. I will let yall know so we can narrow things down next time anyone has this problem.