you can shim then for two bucks, do a search on here someone had a part no. and thickness for the shim for this, I did the same conversion and wish i didn't spend the money when you can just shim it or cut it back some.
You increased your bore by 5mm, divide by 2 for 2.5mm(.098) and add .75mm for clearance for shims that are somewhere around .125-130 thousandths. Personally I run 1mm extra for clearance on my big bore for some safety margin.
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