Seriously I want to know with my sig combo & not messing with boost or timming if Race gas or Xylene is the way to go. If Xylene What parts per gas and what does it do to the engine....??? I mean has anyone consistantly run Xylene mix for a long period of time & what are the results. Thanks
Bryan I just want to stress that I don't want to mess with timming or boost.
Bryan I just want to stress that I don't want to mess with timming or boost.