Improved Stock Twin 800 @ 660 lbs.

All Improved Stock rules applicable.

All Improved Stock Class rules apply to these twins, with stock carbs, stock cylinders can be modified internally, and stock heads with inserts allowed.
Must run stock bore and stroke for the model, revising the stroke and bore is not allowed.
Stock ignition can be reprogrammed.

Weight with Driver will be at 660 lbs.

Small tanks allowed as long as stock shell is inplace and cut out for inspection.
Stock suspensions only with 0.5 inch lug speed track allowed and studs at 0.75 inches above the lug.