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Enthusiast ![]() Joined Apr 2, '12 From texas hill country Currently Offline Reputation: 0 (0%) ![]() |
hello all, im new here. im looking to save more gas with my 99 gt. i was wondering if there is another differential i could use to lower my cruising rpm.
if i want more power ill leave it in 4th gear. 3000 revs at 60 mph or so seems a little high, granted its good for power. anyone have any ideas? |
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Enthusiast ![]() Joined Apr 2, '12 From texas hill country Currently Offline Reputation: 0 (0%) ![]() |
ok, so to be clear. for good highway mileage i should advance or retard the timing?
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