I was looking to get a different converter. I spoke with a guy at Turbo Action and he recommended the 904 lower gear set as a priority over a converter change. He said a converter would help but the lower gears and a converter would really help. He acted as though the gears were a better way to spend the money. He said the lower gear set would give me equivalent of a 3.60 gear in 1st. I have a TCI converter I got with the 904 when I bought it. I don't know the stall speed on it. Nothing wrong with the tranny and the converter seems to work fine. I just want more torque on takeoff.

I have a 73 challenger with moderately built 69 340, .030 over, Forged SpeedPro pistons with Edelbrock 60179 heads, Voodoo cam 60402, about 10:1 compression. I have 15 inch wheels.