Which wire to splice for auto choke

So I’m taking off the holly 750 that the previous owner put on the ‘71 318 that is in my ‘66 Barracuda. My buddy gave me a street demon 625, but it has an electric choke. I’ve read that I need to splice it to the dark blue wire, so it will only get power when the key is turned. Well, like a bowl of bad spaghetti, my harness is a MESS! Can anyone point out which wire I’m looking for? This is my 1st classic car, so this is all new to me. Let me know if I need to snap any more pics. Thanks in advance.

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