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Attn: 4.6 DOHC racers w/ Longtubes

275 views 0 replies 1 participant last post by  T-Bone 
#1 ·
I normally shift at 7K at the track. Should I shift at 6K with the longtubes since they increase low and midrange numbers, and power seems to fall off after 6k on these cars anyway?
 
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