Hey everyone this is my first ever forum I've joined my name is Jeremy I have a 97 GTP it's my baby I'm modded her alot the list is Ported supercharger ported lower intake powerlog 3"catless downpipe 3.4 supercharger pulley then I was gonna do the 1.9 rockers then I said wat the hell am I thinking so I dropped the XP hot cam in her along with everything with it ls7 lifters 140# valve springs titanium retainers double roller timing chain an i got a 3.2 supercharger pulley come an i got a 3.2 super charger pulley coming an autolite 103s so I guess my question was should I be running other plugs Tha. The 103s with all that any feed back would be greatly appreciated so thi was so long