Thread: EFI or Carb?
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Old 11-01-2006, 09:02 PM
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Default Idle sound

Typically, EFI systems run the idle lean or stoich (14.7:1 or leaner). Typically, carb engines are tuned considerably richer at idle.

If you want it to sound more carb-ish, add fuel and don't use closed-loop idle control. Not hard to do with most systems, but wastes fuel at idle.
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