well i did my valves again today, because last time i did them they were too loose and were ticking pretty damn bad. so i tightened them to .008in on the intake, .010 on the exhaust, 1 thousandth of an inch tighter than what the recommended valve lash is. i did this when the motor was stone cold. so i start it up an hour later and the valves sound beautiful. me and my friends go cruise a little bit and listen to my one friends system, shoot the shit, etc. so we all leave and i come to a stop/at idle and i can hear my damned valves ticking again. i open the hood, sounds like ****in marbles in my valvetrain. WTF am i doing wrong?