Thread: Biggest cam to meet ULEV Emissions on an LS1
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Old 01-27-2009, 05:38 PM   #15
VettezukiVettezuki is offline
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Quote:
Originally Posted by geeeezer View Post
A too lean mix will blow the HC reading off the scale and ultimately kill the catalytic converter .

G
I thought it was the other way. Lean means hotter, more NOX less HC. Rich means cooler, less NOX more HC. In other words you can't really go too far either way before getting bounced by the sniffer I suspect.
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