We provide the Base tunes and submitted tunes from others that have purchased Brown injection systems EFI. Let be honest, there are a few that will take this tune and try to build their own to save a few bucks… I don’t blame them, but we have thousands invested in the EFI system and just trying to get a little back. We built the Brown EFI as a fuel injection system for the masses, no one-off or specialty systems that cost thousands of dollars more than ours. We changed injectors beginning Dec 2019 to a more available 32lb injector vs the 40lbs injector (which only has one commercial application).
If you need a base tune to start over, please email me: ted@corvair-efi.com. Include your name so I can verify your purchase.