I would gear it up one tooth in the Front (15/41) and get it Ported and a cool head with 21cc domes and 28mm flat side Carbs and a set of V-Force Delta 2s.
Here is the Mod I have on my banshee and I am running 300ft in High 4s
FMF Fatty Pipes
FMF Power Core 2s
Cool head w/21cc domes
Race Logic Porting
Vitos Power Pistons
28MM Flat side Carbs
V-Force Delta 2s
Boost Bottle
Team Alba Clutch Kit
Hinson Clutch Basket
Hinson Cushions
Hinson Pressure Plate
Lightened Flywheel
Vitos Degree key
Pro Flow intake
6 filtered air vents
15/41 gearing
And On sunday I Drag raced a Raptor wirh a 686 Big Bore and a Titanium spring kit and Hot cams and a DMC Pipe and K&N Air Filter. and My banshee Killed it with no Problem