FiTech EFI system

Okay, I have some tuning questions and I figured it might help so folks here if you are a tuning noob like me.

First off - Hot start issues. It starts great during a cold start or even kinda warmed up starts (maybe 2 cranks to start). However, when its hot and I shut it off, then try to restart right away it tries to start but will just crank and not fire. Sitting for a bit and it will eventually start but with a lot of cranking. In looking over the handheld manual it seems as though adjusting the crank fuel 170 setting might help? Thoughts?

2. Did not pass emissions - High CO (so I assume a rich state) - Its currently running whatever AFR that it learned to like and I left it there. My emissions are done at idle and at 2500-3000 rpm. Would adjusting the idle AFR target and 3000 45kpa settings a bit more lean for just the test solve this issue?

Thanks for the help and bearing with me whilst I go through puberty on this tuning stuff. Much appreciated.