https://megasquirt.info/ https://megasquirt.info/ is one (and one of the most well-known). I've considered doing a retrofit on a classic Mustang V8, but the ol

https://megasquirt.info/ https://megasquirt.info/ is one (and one of the most well-known). I've considered doing a retrofit on a classic Mustang V8, but the old-school carb works well enough that it's not been a priority. Edit: sibling comment correctly identifies the code as not open-source. (I could have sworn it was; perhaps it started that way, or perhaps the amount of open it was when I last looked in detail was sufficient for my plans.)