A big question at this point is what is the power band of your camshaft?
That is a big part of choosing your TC.
Other factors are, what type of tire are you required to run, or allowed to run.
If you are having to run a street tire, or a street legal racing tire, you might want to consider going with a TC that stalls at about 500 RPM below the power band of your camshaft.
If you are able to run super sticky, down and nasty, all out drag tires, then you might want to go with a converter that stalls at about 500 RPM above the bottom of your power curve.