Is this a good and accurate dyno? We are testing an 00L and my current F-150 on Sat and I wanted to make sure this is a good one before I go. Thanks

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1999 F-150 Lariat SC 2 WD, White/Silver, 5.4L, 3.55LS, K & N FIPK, Superchip, underdrive pulley set, Flowmaster dual chamber one in and duels out, six disc CD changer, towing package and captain chairs