Can someone please tell me which of the notches I use when installing the cam gears onto the camshafts? There are two slots in these gears for the pin on the camshafts to fit into. Thanks.

according to kiatech
9.Install camshaft pulleys onto camshaft, aligning "I" mark with the intake camshaft dowel pin, and "E"mark with exhaust camshaft dowel pin.
Tightening torque : 36.2~44.8 lb-ft ( 49~60.8 N·m, 5.0~6.2 kg-m)
http://www.kiatechinfo.com/data/manual/shop-Images/KM-FB13-IMAGES-ENG/bc3c100c.gif

Intake is Left one Exhaust is right one.