Just curious to see what race fuel people are using. I just finished a SS build on the R6 and been talking to a couple different builders on race fuel. I have one builder who states MR12, and another who stated CHP+. Talking with VP Fuels Tech support and they state you need to drain the tank after use when using MR12, and also flush the system with another fuel when using MR12 since it gums everything up. So now I am really leaning towards CHP+, as its similar to MR12 but you dont need to do the extra maintenance. Anyone use CHP+? Its uncommon for sure but the builder who suggested it is very reputable in the industry.