Yesturday while i was doing my valve adjustment i pulled out my spark plugs and they were pretty white. I just put these plugs in about a month ago. I have I/H/E/VAFC/FPR, im not to familiar with tuning the v-afc yet, but i was reading if you bump up the % on the wide throttle itll richen up your a/f ratio. Would it be a good idea for me to get an ITR intake manifold to get more fuel to it or can i richen it out with the v-afc?