I mixed race fuel in with the gas that was in the mav, now it doesn't seem to want to run as good.... Hope it didn't hurt anything! Was hittin 79-8000 before.
That is exactly right. Big misconception people have about race fuel. The only time you need it is when you are lean/detonating.Higher octane doesn't mean more power. It actually will hurt performance if it is not needed. Basically it will provide less power because it burns slower or with less energy (easy way to think of it), The only time you would want high octane is if the engine is built for it or you are detonating.