Clicking/Spark noise after spark plug change – 1990 Porsche 944 S2

[leftarmer]

Need some guidance..
My car: 1990 Porsche 944 S2

just changed my car’s spark plugs with NGK Iridiums.. wires seemed ok so didn’t change them..
It was my first time using a torque wrench. I did set it to 20 ft lbs but stopped before I heard the click sound as it felt tight enough and I didn’t want to mess up the threads..

after starting it, I am hearing a ticking/spark sound..

i bought the plugs that matched my car from Pelican parts. I didn’t check the gap before installing.. assumed that they were gapped correctly.

i didn’t torque them to 20 ft lbs as I was scared of messing up my threads.. they are in pretty tight..

I didn’t change the existing wires (Beru). Should I have changed the wires that would work with NGK plugs?

i checked the car in the dark while running and I didn’t see any arcs..

this was my first time doing a DIY change.. wonder what mistake/s I made..

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