I have a 2007 gt500 with a tvs id1000 and a kb bap 20v. Why is it that newer gt500s get away with just a bap and injectors for e85 but with my 07 I need a return style fuel system? Is it just because of the wideband that the new ones have? I'm at 700 whp, just wanted to use e85 so I can increase the boost and power safely, I've ran out of bolt ons to install... lol
