I don't know what kind of setup you're running, but I have Cobra pipes, Ness intake, and the Cobra FI2000r set at 2-2-1. I don't do any high speed running....usually between 60-70 on main highway, and around 50 cruising the back roads. I can run 200 miles on 3.5gal set that way. You definitely were ready for an air filter change. If you haven't done so, I suggest adding some Seafoam to the tank.
To get at your plugs, remove the bolts at the rear of the tank and it will tilt up/forward. Block it up with a piece of 2x4. Use the wrench in the toolkit and you should be able to get at your plugs with no trouble.
Real gun control is having the ability to hit your target.
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