pHEnomIC

I keep getting an occasional misfire code and can hear the distinct missing noise under my exhaust. It happens once every few days. I have new taylor spiro pro wires (just replaced one with a burn and didnt fix anything, the rest have been inspected from top to bottom and no burns), I also have new ngktr55s gapped at .050. They are all snug and i think everything is set up there. What is the next thing to look at it. Its strange because it seems like i get the mis when idleing for a long time or slamming the brakes or going over big bumps at high speeds. Nothing appears to be loose though.

Anyone got any ideas?

Kataklysm

I'll be the frist so say opti may be doing it. I'd go back and check the wires though...you may just have one thats crappy for some reason.