I'm not sure what your mods are? at one time I was allmotor (d16y8) I had a stage 2 cam w/cam gear, vtec controller and a chipped ecu. With that I notice a big diff. When you adj. that cam gear remember that you will lose top or bottom end. depending what u want. yes! the dizzy you'll have to play with alittle! As far as the timing belt dunno??