On the 6's the injectors fire in two lots of three. If I remember correctly the V8's did it in 2 lots of 4.

I really wish I still had that Bosch book that got washed away in a flood and was impossible to replace. That was in January 1974 and I've been trying to get another copy ever since. Of course we didn't appreciate that book as it was given to us and when we wanted another one they where no longer available but it was amassing just how much it got used.

Col