Well got nothing better to do ha ha ! i will start off with saying e85 has it good points and bad . Does not have to many but does have a few . but imo the good out ways the bad in most combos . now for back to back compros last year jeff was having a problem with his car . I suggested taking it off e85 and runing it on race gas witch was easier to read the plugs . He did problem stayed car lost cant rember exacly but it was more than a tenth . Now i pay 17 bucks a gallon for race gas if i can ran as good or better for 2.50 a gallon that would be great!!! NOW HERE COMES THE BAD PART . There is not alot of people that know what they are doing with the shi.. e 85 dont blow your shi.. up a bad tune did . one of the benfites of it you can add more timing . Well theres were the gread comes in . on a bad air day or you get a good bach of the stuff you make good power 3 weeks from now the da drops like a rock and you get a lower bach bam hole in the piston . Once more poeple get used to it you will see it more in racing . And i got news for ya 10 years from now old obama is goiing to take my c-23 from me so better start learning