[chipa]

You can change it by using either the frequency kit or the shift light kit from Jaycar. I would think that the stock ECU would be able to keep the fuel right automatically. I've built the kit to do this after experiementing with the bum dyno and I'm fairly sure mine is around 400 rpm away from the perfect trigger point. The only way to tell accurately is to do 2 dyno runs, 1 wth the VICS solenoid permanently on and one without it. This way the torque curves can be compared to find where it should change to give the most benefit.