Just an example of a converter. My 66 Valiant with a 170 engine and a 9 1/2 converter full foot brake stall was about 3200 rpm. every thing else the same except going to a 225 engine full footbrake stall was just about 4,000 rpm. The bigger engine made more torque, so the converter stall was higher with the same converter.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

My truck with similar engine and gearing as yours ( Only a little smaller cam) and a stock convertor is Ok. But it would be much nicer with a 2800-3000 stall like Lou said. I'm keeping my eyes open for a used one.

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2 Mopars come with Spark plug tubes. One is a world class, racing machine. The other is a 426 CI. boat anchor!

12.70 @ 104.6

Places like transtar and WIT can fix you up.
Last few trans kits I have gotten haven't had bands, had to get them seperate