[HWYSTR455]

The point is, it can advance or retard beyond what the programmed values are. And every install is slightly different, so you can't take it for granted. I know it threw me for a loop at first.

If you watch the holley dual sync install video, the adjustment is mentioned.


Here's one thread on it:

https://forums.holley.com/forum/holl...-what-is-right

" Just to recap - Synchronizing the EFI timing (laptop) with the engine timing (timing light):
NOTE: Temporarily disable the "Idle Spark" control (in Idle Settings).

1) Turn the distributor or adjust the crank trigger to synchronize the initial (idle) timing, then lock it down.
Next, ensure timing is synchronized at higher RPM using the EFI software.
NOTE: Now use the EFI software "Enable Static Timing Set". I use a static timing value of 25° or 30°.

2) Momentarily rev the engine, and watch the timing advance with your timing light. It shouldn't move.

If timing advances or retards, adjust the "Inductive Delay" until the timing maintains itself.
If the ignition timing retards, increase this value. If the timing advances, decrease this value."

In the dual sync vid, it was recommended to go in increments of 20. It's not difficult, and it is important. Has nothing to do with rotor phasing.

Why isn't in the instructions? Because the instructions are outdated, for one.


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