i just got my motor back together and after breaking it in i thought about trying out air box lid. It ran fine but bogged down when first hitting the gas and had some really good power on take off and that was it. After putting back on the lid it doesn't bog down anymore but doesn't have the low end power it had either but runs a lot smoother. How can I get that really good low end power like with the lid off but make it run as smooth as it does with it on.
