Starter issues

I purchased a new mini started for my 68 427 (auto) and I cannot achieve the proper clearance, I have no shims and the clearance is over .050. do I have to machine an extra .020 off the housing of the starter? to compound the problem, it would appear the starter is moving (twisting) after I try to start the car this adds to the clearance issue. Does anyone out there have any advise?

Signed: extreamly frustrated

 

They sure don't make things in China like they used to, not trying to be a butthead but, some of these starters are not very good, and sometimes you can't put the flywheel cover back on, if it were me I would return the mini and put a new BB starter back on