Looking for a gearing ratio for a 212cc mini chopper looking for acceleration I'm running a 10/40 tooth now

[Big212]

Im looking for acceleration for my 212cc mini chopper I'm running 10/40t now but want acceleration any suggestions

 

[wolvmarine]

TAV transmission

 

[5-7HEAVEN]

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orrrr

Go Kart/Mini Bike Steel Plate Sprocket #35 Chain 60 Teeth (469) 34761004694 | eBay

 

[CrazyDan]

What's the circumference of the rear tire fully inflated? That is a very important measurement in deciding gear ratios.
If you want acceleration get any rear sprocket larger than the 40t.
Use this: http://jimsitton.net/ratiocalc/gearratio.exe