Well the proper way to tune a carb sled is to start at the idle and work you way to WOT. But being it runs good and all you changed is the air box I would jet up 2 sizes (main Jet) and see what the plugs look like. If it has a low end bog turn the air screw inwards to richen it up. If that does...
HI guys, I am new to this site. I found it yesterday doing a search for A/F ratios on Google and never new this site existed until yesterday. So I looked around the site and it seems there is a bunch of you that like to do the same things as I do and thought we can probable help each other out...