well i bought tr6 ngk plugs, i bout 3.4 pulley, ordering downpipe in two weeks bought zzp 1.0pcm, oil change royal purple and some lucas, supercharger oil change elbow replacement new thermostat, After reading the how to mod 3800 thread i think i will be good with smaller pulley also getting the aeroforce gauge what should be my next mod to help roller rockers or cams?