mini starters for a 1966 273 header install

Hello - I have a 66 Barracuda, with Harold Johnson Spitfire Headers. I put a mini starter on, however, the bottom of the starter is making contact where the pitman arm bolts into the steering linkage. I am considering grinding down the top of the bolt in the pitman arm in order to achieve the inch that I need. Does anyone have any other recommendations on getting that clearance?

Thanks!!!!