I have a stock 87 GN. The only changes from stock are a turbo tweak street chip and a 237 FPR. I have an E85 station near me. Could I get any performance increase if I run any E85 in the car without making any changes from stock or would it be harmful or detrimental? If I can run it, can I run 100% of it or do I need to blend it with 93 octane and if so how much of each?