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post #1 of 2 (permalink) Old 12-08-04, 02:10 PM Thread Starter
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Air fuel ratio for power

I've recently rejetted my holley HP DP from #73 prim and second, to #76 primary, #78 secondary, as my dyno AFR was leaning out to 13.8:1
I seem to have lost some performance. Does a leaner condition give more power? Can I increase total advance as it is less likely to ping now? Will more spark help with more fuel?

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post #2 of 2 (permalink) Old 12-08-04, 03:15 PM
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Re: Air fuel ratio for power

About 12.7->12.8 is where you want to be.

Brenden

XB Fairmont (street car) 11.07@123.02mph.
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