[george16257]

I bought a second hand G13B a little while back that was supposedly rebuilt (not by a professional I hope considering some of the things i've found).
I recently blew a head gasket and while i was pulling the head off I discovered that the cam had been timed on the 60A timing marks and not the 80C marks as all the "You Tube" videos say.
Can anyone tell me what the 60A marks are for and if i will encounter any problems if I use the reccommended timing marks. Please don't just run through the timing procedure, i've done this a few times so i know the drill.