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Old 05-06-2004, 03:30 PM   #1
RockHQ
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Join Date: Feb 2003
Location: Finland, Europe
Posts: 509
TH400 shift points

Okay, I replaced the shi**y 2-barrel holley and intake manifold on my '79 C-10 to an aluminium spreadbore intake and a Q-jet with a 1" spacer. Feels like a different engine altogether. Now i would like the tranny to shift a little higher in the rpm range at WOT, what's the best way to do this?

Thanks,

-Axle
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1979 C-10 shortfleet: Olds 350, Th400, 12 bolt
Current project: 1969 Olds 455 W-30, needing a rebuild
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