I'm not familiar with the term "stall converter". Auto trannys use a "torque converter" which acts as a fluid clutch, allowing the motor to continue running, even when the vehicle is stopped.
IIFC...TC's have different "stall speeds". This is the RPM at which the motor begins to overcome the fluid action of the TC, thereby applying torque to the tranny.
Stock TC's begin this roughly around 1500 RPM, allowing smooth, uneventful acceleration from a dead stop. Hi-Po, or "loose" converters, will move these RPM upwards, say to 2500-3000 RPM. This puts the motor in a more ideal power range for stronger, harder acceleration.
The effect can seem like a slipping tranny, but is normal operation.
So...as previously stated by my fellow members above...since you have a manual tranny, "stall" or "converters" is not something you need to worry with.
