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05-30-2010, 01:41 PM
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#1 |
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Registered User
 Join Date: Aug 2009
Location: Manassas, Va
Posts: 60
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factory tach question??
I have a factory tach for a V8. I am going to run a MSD ignition (6AL box) and a pro billet MSD distributor. Is there anything I need to do with my factory tach so everything operates properly?? Thanks guys!!
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05-30-2010, 05:03 PM
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#2 |
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Registered User
Join Date: May 2009
Location: Calgary, Alberta
Posts: 115
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Re: factory tach question??
Others will probably chime in but my tach never worked correctly after I changed over to HEI. The reproduction tachs might be compatable with electronic ignition.
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69 Chev C/10 350/200 4R LWB 69 Chev K/20 4x4 350/4sp LWB 69 GMC Sierra Grande 396/400 LWB |
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05-30-2010, 05:54 PM
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#3 |
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Registered User
Join Date: Mar 2003
Location: San Francisco, CA USA
Posts: 2,454
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Re: factory tach question??
I agree completely. On GM vehicles that offered optional electronic ignition (before HEI became standard), the factory tachs always had different part numbers for points and electronic.
Sometmes the aftermarket ignition suppliers can offer a fix for the tach problem. I would ask MSD before trying anything else. Ray |
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05-31-2010, 05:45 AM
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#4 |
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Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,507
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Re: factory tach question??
These old factory tachs will not read close to correct no matter what you hook them up to.
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Tim |
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