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With factory-fresh clean carbs, high-end WOT mixtures will be way too rich in 10.0:1 AFR range. Can pick up +5-7% more HP by leaning out mixtures with 96 main jets. Racers use 94-95 mains along with full-exhaust, snorkel delete and leaner needles. All dyno proven.
No one who's advocated bigger jets has ever provided before & after dyno charts of any gains.
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