I can't find the post I seen on this but which marks do u go off of for tdc on the stock gears, put the arrows in the middle facing eachother or the notches. i think its the arrows but this isnt something i wanna take a chance on. any help appreciated, thanks guys

 

Both arrows up.

 

If I remember right there is a dot on each cam gear. You suppose to line those dots with the head.

 

arrows go up, and lines meet together in the middle