This is from the open tuner book:
Before we get into the process of doing a timing tune, I am going to present an idea here. The stock timing tables of a 2005 GTP are significantly more aggressive than a stock 97- 03 setup. I think that copying over the BFS, GFS, MBTS and ATS (air temp spark) tables from a 2005 GTP over to your 98-03 GP make an excellent starting point. In fact one could do just this, and feel a nice increase in throttle response. Cruise timing up to a maximum of 42 degrees and WOT timing approaching 21.5 degrees under a good tune is an excellent increase.
How will this help me with my KR?
