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Registered
Join Date: Oct 2001
Location: Momence, IL 60954
Posts: 1,911
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As Klaus said, it goes without saying that you should monitor head temperatures as well as AFRs for a more accurate picture of true performance. In both cases that I was tuning at 13.8:1 I had quad chts (it was a type 4) and the engine actually ran cooler at 13.8:1 than at 12.8:1. It's about finding what your engine likes and needs.
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Charles Navarro
President, LN Engineering and Bilt Racing Service
http://www.LNengineering.com
Home of Nickies, IMS Retrofit, and IMS Solution
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