So I left my house this morning and got on it to hear my new air intake system. And when I shifted to 3rd it felt like the throttle hung when I pushed the clutch in and then it started running rough and was stumbling. It only did it for a couple seconds. I pulled over to inspect everything and everything looked OK. Drove it 50 miles after that and no issues since. I've tried to make it screw up but nothing...... the only thing not 100 % wasthe hose on the front of the valve cover was unhooked. It hooks into the air filter hose. I don't think that was the cause. I drove like that the rest of the day no issues. I have since plugged it back in. Oil is good coolant is good. Runs great. I'm starting to question if I missed a shift? I don't think I did but since I cannot duplicate the issue idk. engine lights. I'm lost throttle cable and all that looks fine. Nothing is obviously wrong so im confused. Any help would be great.