hey guys i got some plugs and changed my spark plugs yesterday , I was told by mechanic to run BKR7E and regap them at around 0.6mm gap . Now it idles great and doesnt hunt , drives real smooth but when i get it a hit it sounds terrible like a spark breakdown sound around 6,0000 and above . Im running fully built engine with Splitfires and i have never had this issue but then again i have never run that gap or plug before , (always BCPR7ES @ 0.8MM) also now im noticing my 555cc injectors reach 100% without really any load/boost ?
what have i done to my car ? can anyone help me