I want to convert a rear HED3 freewheel for track use.

It is 130mm OLD (road standard) now. I'd like to get it to 120mm OLD (track standard) spacing with the HED track conversion kit that is sold on their website. Would the conversion kit do this or does it stay at 130mm?

In addition, if you have this setup, how does the converted wheel do under resisting and backpedalling?