John B,
I understand your position, I've played around with Edit a bit myself and its a great program. (my car just had bolt-ons, 4k stall, and a thunder cam and made 388rwhp/ 371rwtq through a locked converter) I just think its a bit more annoying to get LS1 PCM tuning to work than TR prom tuning. I think that this is simply because te LS1 tuning has just been pioneered. Drivability headaches took me awhile to work out, and it seemed that soon after the edit tuning, the car would just plain do weird things sometimes. Weird random codes that would never come back, etc... In the end, only thing that really needed tuning (on my car) was idle and shift points as well as WOT TCC lock up and EGR equip deleting. Thats all that I found was worth playin with. I didn't see any improved dyno numbers by changing timing and or fuel tables. I was lucky , I think. I know people around here who still have trouble getting their Ls1's to idle with bigger cams, etc... and still cant get them to stop throwing crazy codes all the time and/or run woth a crap. I just think that w/ major internal mods, they can be just a hair more annoying to tune than buicks. BTW, your Monte sounds sweet. Great idea doin an LS1 swap!