Pic 6: EVAP connector. See image 32 to 34:
https://www.lingenfelter.com/PDFdown...ual%20v1.2.pdf EVAP solenoid should normally be closed, so if deleted in ECM, should be able to leave the hose. May want to just blank it off. More information here also:
https://ls1tech.com/forums/conversio...ork-right.html One option to vent the gas tank:
https://www.summitracing.com/parts/tnk-vvr/overview/
Pic 7: O2 sensor connection. Confirmed by Chocolate Apocalypse. List available here:
http://www.rockauto.com/en/catalog/c...2)+sensor,5132 Likely go with Bosch 15282 as it is flex fuel capable. 15283 may not be? but does have a longer connector, which might be better for headers (need to check length of harness once headers are installed).
Pic 8: Not sure what this is. Might be a ground connection point? I think it might be an exhaust hanger to the right. Doesn't appear to be necessary for install.
Pic 9: Transmission breather connection confirmed by Chocolate Apocalypse: "Trans vent/overfill line. I just have mine hanging down so if anything does drip out it just ends up on the ground."
Thanks for anyone who can help out!