hi, i am planning on doing a little modding next weekend and have some questions. this is a 99gtp l67. i am adding a gen v, northstar throttle body with LQ4 MAF sensor and a xp-hot cam. my questions are what pulley size should i run (currently running a 3.4 my gen III) i have a mps some need to know what size i should buy. also which size injectors should i use, will 42 pound ones be fine or do i need the 60's or 65s. other mods are ram air intake, 3" dp, 2.5" ss mandrel exhaust, zzp custom pcm. but after the modding i am getting a dynotune. thanks for help/suggestions.