V6 coil pack just has 3 coils inside not 6, 1 coil fires 2 spark plugs at the same time, called a Waste spark system now-a-days, but it was the first spark system ever used, and it's still used
Timing is based on crank not Cam like a distributor
All multi cylinder engines need to be balanced, on a V6 2 cylinders are matched pairs, they are both at TDC at the same time
For a V6 that's 3 sets of matched pairs, each 120deg apart in their rotation, so each pair have a TDC in each 360deg rotation of the crank
The 3 Matched pairs are
1 5
2 6
3 4
Look familiar?
Yes, the coil pack "pairs", each pair gets a spark at its TDC but only one cylinder would be on compression stroke to use the spark, the other is on exhaust stroke so spark is "wasted", hence the name
But not really a "waste" like we think that word means, should be called "simple" spark system, since that's what it is, simply the easiest and most reliable spark system ever used
Pretty much all V6's use those matched pairs to balance the engine, Ford, Chevy, Dodge, ect.............
Doesn't mean firing order is the same, that's decided by the cam setup