Torque converter question

In simple terms: A torque converter is designed to slip to an rpm as delegated by the internals of the converter. At which point when said rpm is reached, the converter "hooks" thus launching the car. Now a higher stall rating allows an engine to wind up to its optimum power band before engaging. Soooo....say you put a high stall converter in a daily driver...the converter will slip to a degree until the converters stall rating is reached. So if you putt to work at 40 mph, and 2000 rpm. But you have a converter that stalls at 3k. It will be slipping the entire time. More heat is created...never good. So you lose some drivability. A long, low rpm highway cruise could cook the trans. But most converters when properly matched to the car and cam can be very streetable.

Now for more long winded nonsense :)

A shift kit eliminates the smooth shifts and slams gear to gear with faster shifts because the clutches in the trans slip less. A converter with a higher stall wont effect shifting other than the engine will wind up to the higher rpm before surging forward.

Lastly, a stock converter is almost always leaving performance on the table with a cam swap. Dont let the high stall and my jargon above talk you out of a new converter. They are cheap, and I recommend one with almost any cam swap. TCI, ATI, or even B&M can recommend a suitable converter to get you drivability with some snap.

Hope this helps some. Good luck