Hate to break it to ya, but Rhonda's Kona Blue '11 5.0L did not get strapped down to John's dyno at all. She went to the HP Ranch to get an SCT tuner to correct the speedo for the shorter drag radials. John simply installed a canned tune that he's used for other 5.0L's and raised the shift points for her automatic transmission. Otherwise, her 5.0L is 100% bone stock and ran 12.30's @ 114-115 mph all day. That's damn impressive and is making me really think about buying an '11 or '12 5.0L with an automatic.
Oh he usually dyno tunes them when you buy a tuner from him, I stand corrected. My friends 2011 was the first one that he dyno tuned I wonder if he used the base file from that tune?