I am running a 6.5 that has higher than normal compression and will be installing a turbocharger and water or water/methanol injection that sparys when ever there is some boost.
When running methanol on a 6.5T is there any need to retard the timing?
I have herd that running propane, natural gas or alcohol causes the air/fuel in the combustion chamber of a diesel to burn up faster, most people seem to agree on this.
Is it fast enough to make a difference in your base injector pump timing setting?

i left it the timing the same on my duramax. As low of boost numbers you should make on a 6.5 i wouldn't worry about the timing.