Finetuning questions - do I need a high-stall torque converter ?

I think this needs to be considered with care..... I think this idea is for a car that is optimiozed for best ET's. It is not what you would necessarily do for a street car.

Right, It's a generalized statement. You have to take into consideration that it is a street car. My street car has a 3500 stall and that is where it makes peak torque as well. My dad's truck makes it well above that, in the 4's. Dynamic gave him a 3,000 stall. When he calls to get a convertor made they will ask him all the questions and set him up with what's best for him.

To the OP. A 3500-4000 stall converter, assuming it's a custom quality unit will drive like a regular car. It's not like dumping the clutch or feathering the clutch out at 4k RPM.