torque converter recommendation needed

I spoke with Dynamic & they said something about needing a "significant" amt of slip which surprised me as I thought tighter would be a bennie (for sure they know more than I do) & they wanted to know how it was acting off of the corners & I have no ans for that as it is my first time at this track & it is a new car (74 dart)/new setup. they are going to send me a questionaire per my request. RR