it only makes sense that if youre pushing more air through the engine, you better be injecting more fuel too. 45 mpg sounds exactly right. ive been tuning all my bikes for years by doing a plug chop at low, mid & high rpms with great success & now with a gas anyliszer at work i can conferm my guess work. at mid range on the highway, my stock warrior got 50 mpg. a plug chop confermed a slightly lean condition. with the pc3 403-211 map that lean condition went away & my fuel consumption suffered only slightly. when i do the wanab air filter mod ill have to remap
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