Prior to the aluminum intake AMC mounted them into the water jacket in the block. There are two plugs on the driver's side that will take a CTO valve.
I would try to put a CTO on. The simple two/three port switches are about $20, or I bet someone here has a few laying around. It's supposed to open around 160. Just bypass the CTO for now, it's a cold driveability item. You may find you don't need delay valves either.
The emissions port is on the front of the carb at the base on the left as you face forward. (So it's on the right as you're looking at it standing in front of the car.) It's designed for controlling the EGR and canister. Start by just hooking them to that and see if you get any surging when you ease off the throttle as you reach cruising speed.
If they're working properly, they only function at light throttle/light load and turn off as soon as you hit the gas or lift off.
I've always been a fan of stock air cleaners, but I drive all winter. I've seen guys cut out the hole in the bottom and just rivet and caulk the bottom of an aftermarket air cleaner to it to get the hole size right. It works for a long time.
Oh, and I was reminded writing this, use a purple/black
delay valve. on the distributor. AMC seems to have them listed on everything, I think to deal with sudden throttle closure causing the timing to advance. It should say "dist" on the side that goes to the distributor, and there were many variations of it.