I could figure this out on my own, but i figured I would ask first and potentially save me some effort.
I am currently indexing my 36-1 trigger wheel for MS. I am running it off the crank pulley, so i need to identify where TDC is. It would be easiest to locate it in relation to where the keyway sits. I currently assume the keyway is facing upwards at TDC, as shown i the picture. If someone could confirm or deny this (and tell me where it actually is supposed to be) that would be awesome.
trigger wheel alignment.jpg