Timing on a 2008 Marine Power 5.7l 340hp

[Eighty516]

Does anybody know the procedure and specs for setting ignition timing on the above referenced engine?

[CDAWaves]

I believe that the ignition timing is completely computer controlled on this engine. You will need to connect a computer controlled diagnostic program to set the timing.

[boatwakes]

The timing is computer controlled, however, if you're replacing or have removed the distributor for some reason, it needs to be mechanically set within 15-20* of tdc in order to function properly. You can check the timing just like any other chevy motor (excluding the LS) series, at idle it should be 8-10* and above 3200rpm it must be no more than 34* and no less than 30*. What are the circumstances you wanted to set/check timing?