Plug wires ?

And when all is said and done,and the new wires installed,I like to just stand there and just stare at em. For at least 5 minutes. With the engine running. In the darkest spot I can find/create. And drop it in gear too. (No dome lights or dash lights or brake lights even). And if I see ANY little blue sparks jumping around!!! Note: little blue sparks seen easier with periphial? vision. Outta the corner of yer eye.