Dug through the FSM and found the answers I was looking for, so I'll post the images from it here in case anyone else looking for the same thing at some point. This is all pretty much clear as mud in the pieces of paper Stillen calls instructions - which should have been more technical diagrams instead of cell phone photos and gibberish.
EVAP: the line in pink loops around (post canister) and back goes to the barbed fitting between the throttle bodies
There were a couple coolant queries that came up at the same time
Coolant Flow Chart:
Coolant line from stock overflow (G) that feeds back into the system following the flow chart. Gets capped where the line enters the hard line to the heater core alongside the block. (in pink in both images)
A and F were the coolant lines going to the stock throttle bodies. Instead of plumbing them into the other side I'm capping them after being advised they would just heat soak the TB's so they are redundant. This is the line with the green dot on the fitting I was asking about above.
C is another reference to the coolant line that went to the stock overflow bottle. The stock tank is also where you would add coolant to the system before, it should go without saying don't do this anymore with the new one as there is no supply feed out from it.
These were simple things but given the volatility of the Stillen kit I wanted to be doubly sure everything I was doing. Better spending the time looking it up then shopping around for a new block afterwards
Hopefully that last comment doesn't come back to bite me in the ***!