dammit...before the engine went in a valve job was just done and the exhaust valves were replaced with brand new hot grind cams and dual valve springs and titanium retainers....i just put the engine in on friday and started it up on saturday...can you elaborate on the cam timing being off b/c when i brought the heads home from the machine shop, i had to set the lash and noticed that the cam gears were not tightened at all and had to tighten it...now i am suspecting that the machine shop guy just kind of threw the cam gears on there...is there a specific way they are suppose to be installed so that the timing marks line up correctly or can they just be slapped on?