Got a protorque nitrous converter spec'd for a 408 ls to th400 with 200+ shot. I used it on my stock bottom ls1 with 150 shot. Its a 8 inch converter. It stalled around 3800 with my motor and drove great on the street. This was 1300$ brand new. Looking too get 700$ for it. I can give you the serial to call pro torque about it if you want. Located in taylor mi.
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