I think the biggest diff in the dd & perf tunes is the shifting of the trans. The dd will shift a little sooner to give a little better economy & the perf winds out the rpms a little to give you the hotrodding. I drive mine 90% of the time & it has plenty of pep.
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2000 F-250 SCLB 2wd 7.3 auto PHP stock-65t-80dd-120race-high idle-no start 4"tb exh, wicked wheel, 3 guages, AIS, coolant filt,
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