Twin Distribuidor firing

[1ricardo]

Dear Friends,

I have a 3,6L engine from a 964 and since I´m planing in use ITB with a Motec/Fueltech engine management type i would like to know a few things

1-) Does both spark plugs (top and bottom) fire at the same time in a giving cylinder?
2-) Or this engine use the so called " Wasted spark" system? If so, how many pick up sensor do we have? One per distribuidor or just one pick up sensor in one distribuidor?
If so, which of the 2 distribuidor have the sensor
3-) Also how the other distribuidor knows when to fire when the piston reached the waste cycle?

Thanks

Ricardo

[Newsboy]

Both fire at the same time.