Does any one have a picture of a "proper" Fiat 8V valve shim removal tool. I bought one off an internet auction site and it works every where except #4 Exhaust valve where it fouls on the cam box casting. ( ie 1592CC, top mounted distributor). I am reluctant to grind on the tool very much because I don't know if I can grind enough away to solve the clearance problem or I wind up weakening the tool to the point it does not work anymore. Any suggestions?