Does anybody know the angle(s) a stock MK2.5 injects at?

I inject at a fixed angle of -350deg (so ten deg before the intake valve opens), but at around 3k I hit a spot where I think -350 is the perfect time to inject and the car goes insanely rich.

If I knew roughly where the OEM ECU injects I could begin to figure out a variable injection timing table but at the minute it's all a bit shooting in the dark and is beginning to get quite frustrating...

Alternatively if anyone has already figures out a table I'm all ears