[PopsRacer]

Everything was running nicely, but I started to hear a little tick noise that sounded like perhaps I didn’t tighten a spark plug enough so I decided to check the torque on all 6.

They were all a bit loose (didn't use a torque wrench when I put them in, my bad.)
Now they are all 22ft/lbs.
Had a tough time getting the leads back on, not sure why.

When I started it back up it sounded like it was missing at least 1 cylinder and the cold idle was hunting pretty badly, nearly stalling at random times.
* i re-checked all of the leads to make sure they’re connected solidly
* engine is running pretty badly, but IR thermometer seemed to show cyl 4 & 5 were on the cool side relative to the others. I checked their connections twice but found nothing.

It feels like I must have bumped something, but I’m not sure what. All the electrical connectors are in place (injectors, crank sensor & HT sensor, etc) maybe a pcv hose or something behind the airbox? It was super smooth after I installed the plugs and rotor/cap.

Relatively new stuff just as background.. I’ll assume anything can be bad though.
cap & rotor
plugs
fuel pump
DME Relay
Coil
HT sensor
cleaned up engine ground on intake manifold.

I have not checked the leads from end to end to ensure continuity yet. Possible I broke a lead I guess.

What would you look at first?