How do these work? I don't mean the specifics, but I do have a 2500rpm stall speed. If I floor it from a stop, the car moves instantly... Shouldn't it wait until 2500rpm to move? *I have a 700R4 trans in my 76 vette* I had a 3500rpm stall speed in a TH350 before this one, and it did the same thing. Before though, I was able to brake torque it, and hold the car to 3500rpm without tires spinning... Before I did the last few upgrades on my vette, I held the brake and floored it, and it went up to 2500rpm, and just held me there. So, to use stall speed converters, you brake torque until stall speed?