Haven't timed a V6, but on the 22RE you need to get the idle RPM set to a certain range before setting the timing. If you have a tachometer in the dash, that would probably work. I have an old dwell/tach meter that I use on mine, has a low RPM range, 0-1000, so it makes it easy to set the low speed RPM. But I also just picked up a new timing light and it has a digital RPM readout on it.