I have codes p0174 and p0301. Just did the head gasket on the car and i can drive it around fine. The first problem is when i start the car at first it idles rough but then after maybe 3-5 seconds it goes back to normal. But after driving it maybe like 10 miles it’ll start throwing lean codes. At first it had a bunch of lean codes almost as soon as i drive about one mile but i forgot to torque down the exhaust manifold which fixed that. I torqued the intake to the cylinder head to about 13 ft of torque and didn’t notice any cracks in my lines. What else can i look for to combat this? Also i put a camera inside of cylinder 1 and found no coolant so i think its misfiring due to too much air.