Timing tips

That is the "total" duration I guess. Duration at 0.050 is 218/226 intake/exhaust.

I just made a big comparison spreadsheet of the EFI Source table and the stock MSD table against the factory closed and open loop tables and interestingly enough the MSD one actually doesn't seem all that different from the stock table once it's converted into the same format. It does have its changes, but not as much as I would have thought looking at the curve initially. The EFI Source one definitely runs more top end timing and has no dip. The one I have has a very weird hole around typical idle values, but those are a bit too far down on the table for my idle. I'm not really sure I like the hole anyway, so I just put together a table that's a blend of the stock one at the lower loads and the EFI Source one at the upper range. I pulled some timing out in the high load/high rpm section where I have my AFR set to run rich for max power to try to start safer. The max it hits is right near 19, but is closer to 18 through the 3000-6000 range, which is similar to what the MSD curve was. That one had a dip at the end that carried all the way through to redline that I'm sure was probably a safety thing.

If I had the time and money I'd just rent a dyno for the day and run through the whole table and make it easy for myself. Use the dyno to load things up and just sit at every cell and dial up timing until the torque drops off, then back it off a few degrees and call it done. I may yet consider doing that someday, but need to find a place that would let me sit in the car and run it and the dyno to some degree. Most places don't seem to like that idea as much.