06-21-2003, 07:25 AM
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CC Member
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Join Date: Oct 2000
Location: Crystal Lake,
IL
Cobra Make, Engine: Everett-Morrison, 434 cid
Posts: 977
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Not Ranked
I always used a Snap-On dial-back and it seemed to work fine. Then my engine builder said to never use it on the new motor. Being skeptical, I called and spoke to an MSD tech. He told me that a fluctuating reading is not the only problem, it is possible to have a perfectly steady, but inaccurate reading with the dial-back lights due to the RF that the MSD emits.
For most applications, the risk involved from using a dial-back light is not that great, but on an engine that will be destroyed by running a few degrees advanced it's just plane foolish to use a dial-back light.
Scott
Last edited by scottj; 06-21-2003 at 07:27 AM..
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