Thanks for all the compliments. Numbers are now pretty hard. I can't get above 25.5 mpg without the extended Kamm, Airdam and rear wheel skirts. With, I can do 29-30 mpg tanks. That's roughly 13-15%. It's not A-B-A so that's a fungible number.
You can see the last two tanks there are without the aero mods.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.