i just installed some itr cams in my b18c1 and did the valve adj. when i fired up the car intially it sounded fine and ran fine. i turned off the car and let it sit for about 3-4 hours and when i started it again the engine was ticking like crazy(i know what you guys are thinking its the valve adj.) but when i pulled the valve cover off and checked, all the gaps were fine. The engine runs fine but it ticks like crazy. what could it be? do you guys think its ok to drive it? thanks