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· Registered
67 Posts
Discussion Starter · #1 ·
Peak rpm needed
7720 or do you need to run up at 7900
running 290 in linejet
oil rod 2 turns out
stk primary
marron epi spring adjuster half way in
shift assist bearing
140 1.5 studs
In the field 7720
On hard packed road 7900 105mph

do I need the Cat orange seconday
for the field?

· Registered
1,338 Posts
The leaner you are running the higher your peak HP RPM will be. Richer closer to 7700. Leaner closer to 7900-8000. At 105 you are about out of gear and will probably start climbing on the revs.
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