Tach adaptor 8910

[Aus69jav]

I am planning to fit a 8910 tach adaptor and noticed that there are 2 options 8910 or 8910 ESI.

My set up is,
MSD 6530 box
Mallory twin point dist with pertronix 1 installed.
Current triggered factory tach.
I am planning to use white wire to trigger tach.

Car is a 69 AMC Javelin.
Factory wiring is set up with a resistor wire to coil.
Using MSD 6350 eliminates the resistor wire.

Which tach adaptor is suitable for my setup.

Thanks.

[MSDTECH80]

You will need the pn8910.
The 8910eis is for certain fuel injection vehicle.