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Topic: WOT Air fuel Ratio (Read 85 times)
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hyperdart
Jr. Member
 Offline
Posts: 28
BigBlockDart.Com
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Hi guys,
I 13.0 to 13.5 OK for WOT? My 440 engine makes the most power at 13.0-13.5 or should i set it to 12.5 A/F ? It makes about 30 HP less at 12.5 what should i set it at?
Thanks,Brian.B.
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FAST Man EFI
Jr. Member
Offline
Posts: 29
BigBlockDart.Com
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As long as the plugs look good with no speckling and you're not detonating, you can leave it where it is. The ideal WOT A/F ratio is 12.9:1, but no two engines are the same and cam overlap plays a big part. I can see the HP dropping off if you go to 12.5:1 but that's actually a big change. If it's happy there, without causing any problems, go for it.
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