My best advice on timing the cams is to get all the marks in the right place, make sure the cam caps are torqued properly, install the tensioner and then rotate the engine by the crankshaft 2 or 3 times.
Check your marks again, they more than likely moved a tooth off or so on at least one of the cams. If the mark on either cam sprocket is more advanced/retarded of the correct position you'll need to remove the tensioner undo the caps(*may not be nessasary if you can sneak the chain off) and gently rotate the sprocket(s) back/forward a tooth depending on which way the sprocket is off the mark. *Repeat the top paragraph afterward and check the timing again.
If your good, you'll get it in two tries, if your like me:infrandom it'll take you a few times to get it right.
Once you get it right, break out the feeler gauge and start comparing those valve clearances to spec and take notes. Then once you figure out which shims need replacing, go the dealer and buy the shims either individually or as a set (nice if you want to do your buddies and make some cash) and repeat the whole process over again.
Fun huh!:clap:
*disclaimer-Johnnylovely is not responsible for anything:laughingr