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03-12-2005, 12:21 PM
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#1 |
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Chance
 
Join Date: Sep 2001
Location: Belcourt ,ND, USA
Posts: 750
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Tach at Idle Speed
What should a tach be reading when the engine at idle with a 396BB? If anyonw knows please let me know. Also, does anyone have a ratio adapter shaft for a TH400? Thanks!!
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1968 Chevrolet Stepside BB 396 w/TH400 1972 Chevrolet 3/4 Ton 4x4 BB 496 w/TH400 |
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03-12-2005, 04:53 PM
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#2 |
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,656
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Depends on how it's built (and if it's auto or manual trans), not what size it is. Rough guess, 650 for mild, 800+ for street perf., higher for more radical.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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03-12-2005, 05:32 PM
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#3 |
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Chance
Join Date: Sep 2001
Location: Belcourt ,ND, USA
Posts: 750
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Stock build
It was built to be a daily driver with a TH400 auto trans. There are no performance parts in it.
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1968 Chevrolet Stepside BB 396 w/TH400 1972 Chevrolet 3/4 Ton 4x4 BB 496 w/TH400 |
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Linear Mode
