Hi, everyone!

There are several small questions about different Impreza camshafts, maybe somebody will know some or even all answers:

1. What are the differences of different model year GT and STi camshafts?
2. When does Intake valve open on GT? STi?
3. When does Intake valve close on GT? STi?
4. When does Exhaust valve open on GT? STi?
5. When does Exhaust valve close on GT? STi?
6. What is the valve lift of GT camshaft? STi?

Thanks in advance,

Ramunas "Bruno"