November 2010 issue of Muscle Mustangs and Fast Ford magazine
The car used for the test was a 2010 GT500 equipped with the new Whipple 2.9 SC kit from Ford Racing as well as a set of American Racing long tube headers
The testing was done at Big Daddy's Performance by Mike Rozman on a dynoJet dyno.
"All baseline runs were made with the Cobra Jet twin-bore 65mm throttle body, which is standard issue in the Ford Racing 2.9 blower kit."
"First a few back to back runs were done to ensure our baseline of 703 rwhp was consistant and within 2 rwhp each time."
"The L&M66 was bolted on and it laid down 726 rwhp and 671 rwtq, gains of 23 rwhp and 12lb-ft of torque"