timing chain replacement

StrokerScamp said
Why do you need an adapter? I almost 100% positive and for certain all you gotta do is remove your carb, remove the carb mounting plate, turn it 90 degrees and slam it all back together. You gotta an Offenhauser, right?

Yes it's an Offenhouser, But when I tried to spin it to get the primaries where I need them the 4 threaded holes in my intake are not square.