Giggity03

I have a 2003 wolverine that had a gummed up carb earlier this summer. I took it off and cleaned it. The pilot jet was clogged and caused it to not idle. I put it back together and did an oil change with new plug. Now it idles great. The problem now is when I start to drive it at higher rpms it starts to putter. It never stalls. I've verified the float level. Could it be air/fuel mixture screw? Thanks