Here are some great websites with some of the essential modifications with all of the technical information included.  Just a great resource: 

1. https://www.corvsport.com/guide-c2-corvette-bolt-on-mods/
2. https://www.hobbycarcorvettes.net/c3-corvette-classic-upgrades-you-can-do-at-home/
3. https://www.corvsport.com/c4-corvette-bolt-on-mods/
4. https://www.chevydiy.com/basic-engine-modifications-improve-c5-corvette-performance-part-7/
5. https://www.pfyc.com/blog/top-5-c6-corvette-performance-upgrades/
6. https://www.corvetteforum.com/articles/five-simple-and-effective-mods-to-take-your-c7-to-the-next-level/

I’m Randy Brown.   I own a 2009 Corvette Base Model.  I recently had a problem with my car and I thought I’d post this for other members who might have a similar problem.  My car was getting an engine check light and then putting me in “limp mode” at various times.  I put a code reader on it and it said that I had a Throttle Position Sensor issue.  I talked to Randy Standke,  and resident tech expert.  After some research, we decided to disconnect the gas pedal and spray some contact cleaner on the connection.  Simple fix.  It worked.  the car is driving without any issues.  I love simple fixes.