This geezer still trying to learn

Greetings fellow Gearheads, I am a retired telephone repair tech, been working on my own cars for forever. Built several engines, swapped automatics to sticks, etc. Latest project is 87 Cutlass that I built with a SBC/TKO600, added a Holley Sniper and ran it for 2 years. In 2011 I put a 2004 LM7 in my 87 Chevy Squarebody daily driver and it has been a smooth, peppy, dependable ride. Started jones-ing for a LS in the Cutlass. Just finished putting in another LM7, with programming provided by mail in tuning. I am tiring of $$ when I just need some minor tweaking so decided to ty this self tuning myself. The info is out there, just have to learn it. This old hard head doesn't learn easy, but it can be done. I have been on several forums and my experience is, more than likely someone has already experienced my problem and found a solution, so read /search previous posts. So yall may not hear much from me, but if I see a question that I can help on, I will.

Rick