Yep, it is possible to dis-color your headers and pipes w/ the air injection out. It can occur if your air/idle adjustments are not correct and also if your carbs are not balanced correctly. My advice would be to check out member Dinqua's link for these operations....and you can check out Pat's homebrew page as an added bonus!!!! Good luck...we've all been there...I can tell ya first hand that you can become fairly handy spinning the wrenches if you put your mind and resolve to the test and percevere!!!!!
