
02-21-2015, 12:54 PM
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CC Member
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Join Date: Apr 2012
Location: Bay Area (Peninsula),
CA
Cobra Make, Engine: ERA 427, 427/487 side-oiler
Posts: 1,248
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Not Ranked
If you have a big cam with lots of overlap, you won't be able to run EFI in closed loop mode because the oxygen sensor can't get a good reading with significant unburnt fuel passing through the engine at lower RPM.
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