wbt, you are 100% correct! Chris at Circle D wanted me to have as close to a street car as possible at the time. E85 generally isn't used in a street car so he had asked if I could use pump gas for the first couple of tests. If the testing was successful and we went to market touting a street converter but all the test data was with a car on e85 some people would claim misleading testing was done to get the numbers.
With all that being said, with the ability to lock the converter, the converters (even the race one) drive like stock once you tune them. (I only have first gear to tune right now to tune out the slight mushiness and I'll be all set.) I got 25.2 mpg from Dallas to Detroit and back with the 4500 stall!
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2010 GT500
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