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Ok, so I have my car apart (replaced a/c and heater core) I also installed one of Rocket Mans tach's only to have it reading to high. No big deal Bob will make it good. So since I need to send it back I want to check some other things out which require running the car. tach is bypassed so any issues running the car minus the instrument cluster?
 

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If you have the tach bypassed I think you are good to go
 

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the charging system may not work----some systems use the resistance in the idiot light to excite the regulator
Should not be an issue with XR7 since it has an ammeter, no idiot light. It should be fine Ray, at least to my knowedge.
 

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A 69 will run without the instrument cluster hooked up. I have done it back in 1978. The car runs fine you just can't tell what speed you are going or what anything else is doing!

David
 
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