your favorite small block footbrake/bracket race torque converter
I'm running ATI' 8" Treemaster. They gave me exactly what I specified. Car leaves very hard. Mine stalls at 4600, which is as low a stall they'll make the 8". It is much tighter at top end than my 10" converter was, picked up 6 MPH without any RPM change! And this is a higher stall than the other converter was. Spend the money, get a nice converter, you wont regret it.