Ok, so I ran map 5 as that made the highest power numbers. I would however like to re dyno the car on map 7 now that I am on 100% e85 and I was not the day of the dyno.
I am very happy with the switch and to clarify I have been running the 50/50 mix on the jb4 for several months with no problems NONE.
I only bought the bms flash for the reasons I previously stated 100% e85 usage and Timing advance. As terry told me this flash may not be for everyone as its not cheap but I think it was well worth the money!