Tbh I'm unsure how it will drive with the VVT delete there was one local to me for a year or so that ran 250 ish at the wheels had no issues only reason that the vvt isn't used is the ecu isn't capable of running it, did Simon not run a ST170 head on his S2 granted that engine had a lot of work done can't remember how that engine finished up guy on here has it can't remember his user name?