What rpm stall converter should use?

GTX John We go back along way and I know you collect a lot of cars and parts( I even bought a Road Runner from you, Are any of those converters suitable for a street/strip car like mine, or are they loose race converters that you have? I’ve been running into expensive and long estimated availability of parts and converters from The manufactures locally and some of the ones listed on this stream because of Covid. My transmission guy have completed building my trans and drive shaft $$$. I now need to look at slightly used converter, My budget is getting low, if you know what I mean.