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Hoping someone can help!
I have 74 911 2.7 engine with a crane fireball xr700 ignition with matching coil. The tach is from a 76 911s
This was done by the previous owner, My tach is 1000-1500 rpm higher than it should be.
Does this sound like I need a tach adapter? what is comparable with a Crane fireball xr700. Are the MSD ones interchangeable? with crane devices?
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