I just put this zc into a friends car. When I did the head gasket I removed cams to pull the head and I dropped the rockers out of the head. I noticed they were numbered so I put them in according to cylinder number, then noticed some numbers had more then others like there was more than 4 with number 4 on it and less than 4 with numer 2 on it. I have the motor in and running and the valves are extremely loud. I found a procedure to set them on thezcr.com done by jlicrx. I did that then double checked, but they were still really noisy. I went through procedure again .005" intake and .006" exhaust double checked. They are still very noisy, also when you let of the gas after I rev it a little the rpms drop really fast and it feels like it wants to stall but it will come back quick and idle fine. Somthing is messed up and I am not sure. Please help.