Torque converter id

Hey guys long story short my buddy has a dodge van he got a new converter for his transmisson, but we think it has a lot more stall than it should I dunno if they mix matched parts at the shop or what also it’s suppose to be for a 75 360 I only see a little plate welded on it I thought there was suppose to be a bigger weight,
Converter for a '75 360: 12", narrow ring gear. Stall 1900-2200, two weights welded on the front side(engine side) of converter:L 1.62" x .75" x .380"
Converter for a '75 360: 11", wide ring gear. Stall 2000-2300, two weights, again welded on the engine side of the converter. Same as above.
Hope this helps.
Stall speed can vary.