The 1G ECU timing tables provides for a LOT of ignition advance. Many people think it's too much even for a standard 1G engine. So when increasing compression or stroke, you may find that it's WAY too much. A number of people running 8.5:1 pistons from a 2G in their 1G have asked for settings in DSMLink to basically convert their 1G timing map to a 2G.
The basic table to convert a 1G timing map into a 2G using DSMLink's Timing dialog is listed below.
Note that DSMLink timing adjustments are active all the time, not just at wide open throttle. So I probably would not run the timing values listed above below, say, 3500 RPM. I might actually use something more like this.
For v3 users who would like to utilize the Direct Access tables to make these changes, you can find the stock 2g tables here.