hall sensor on a '85 4kq? (5 window type?)

[auditude at neta.com]

Hi all,

I'm still researching the ignition timing reference pin location for my
engine management system conversion.  I supposed I've
determined that the pin is located 62 degrees BTDC for cylinder
number 1 (?).

Now I'm wondering how the stock 4kq hall sensor works.  I know
the hot ticket for some EFI conversions are to use the NF/NG
ignition system, which has a 5 window hall sensor.  Is this is the
case with the 4kq as well?

I remember the NF/NG system is preferred over the 4kq system,
but that's because of the knock sensor.  My engine management
system will have one or two knock sensors of it's own, so that's not
important to me.  However, if it is a 5 window hall sensor as well,
then I may be all set.  Anyone know?

I'll have to pick up the rest of my research tomorrow, er, later today.

Thanks!

Ken