werid miss

[sablowme]

ok guys ive had to upgrade my sparkplugs for the nitrous kit i installed about a month ago. They were zex performance plugs and easy to install like all the plugs on these trucks but now i have this realy werid miss, it dosent happen all the time but i can here it about every couple of minutes but literly every couple of minutes not in any kind of order like a engine miss. I didnt have any complications with the install but i did notice this prob didnt start till about a couple of days after the install..

 

what do you think....maybe too hot of a plug or like a mechanic at my shop said an injection service.

 

thanks guys