[Miami_1LE]

Yesterday I dynode my car for the fist time and had great results. Car put down 427 wheel and 427 torque. Only mod is K&N Blackhawk intake and 3 gallons of E85 in the tank, no tune. I was very surprised with my numbers. Weather was about 93 degrease out too. I would have been happy with 400-410. Super surprised with the 427.

[dotfiles]

You shouldn't be running the car with any E85 without being tuned for it. I saw your other thread asking if you can mix E85 with regular gas without a tune. Normal gasoline already has ~10% Ethanol in it so adding E85 will make that percentage much higher than the 15% E you mentioned aiming for. The car does not have an ethanol % sensor from the factory and the car is not tuned to run on anything more than 10-15% E.
Have your car datalogged to see what the AFRs are. Also don't be surprised by your numbers being "high", the dyno you ran on may just read high. You should get a flex fuel kit and have the car tuned for E85, then re-dyno it.

[danhr]

I would of been watching those AFRs like a hawk. E85 in the tank, in a non flex fuel vehicle, with no e85 tune. That's downright dangerous.

You can live rich all day long.... You can only live lean so far....