Timing is not meant to be adjustable, and will not cause an igniter to burn up.
I see they went to a different igniter type, but since the pickups are the same I assume the igniter works pretty much the same as the older type.
You can make a new one easily and cheaply if you can get right type of HEI module:
s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
