So, with most engines today having variable valve timing, are people going to be able to fit aftermarket cams? I know they have had them for v-tech's for years, but i'm not sure if those v-tech only have variable lift or continuous timing as well, plus they had tuners to specifically design the cam for the car. For example, the vvt-i 1uz. Having the exhuast cam reground shouldn't be a problem since it had fixed timing. What about the intake, can you give performance grind to that and have it designed to work in tandem with the oem vvt-i? I saw on clublexus that someone wanted to add cams to an sc400, but i was just thinking about how the low-end torque around sucks and decent cams would make it even worse. But the vvt-i motor makes a alot more torque, at much lower rpm (doesn't it make like 90% of the peak in the 2k range, while the early 1uz is in the 4k range?) So if one could find a 98+ sc400, regrind the cams, maybe some head porting, headers, s-afc for tune, and hope the vvt-i could control an aftermarket grind, you could make 400+hp n/a, have small block low-end torque and not spend alot of money. So where does the world stand at this point with vvt-i tuning and are aftermarket profiles out of the question with oem control?