Soooo long story short I've had this car almost a year now. It has had a p0300 misfire code since day one. Idles very rough but drives like a new car when going down the road. The only time it doesn't have the lobing "camming" sound is the first 30 seconds after cold starting it. Basically I start the car and as soon as the PCM turns the climate control on I'll hear the ac compressor kick on and it starts idling like it's cammed. My mechanic thinks it has a cam but I want to know 100% what's going on with it. I have replaced the spark plugs, wires, and checked literally everything for misfires and vacuum leaks and check and replaced all gaskets. I've been at a stand still and it's frustration. I'll put some videos up if anyone wants to try and help lol. Basically my question here is what's the easiest road to go down to find out if the cam is stock or aftermarket. Even if I took it apart how would I know? The car is a 2000 GTP 3800 supercharged L67
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