DaveRS23 said: "Actually, if you read the history of the Street Demon, it was designed by former Carter engineers. So, it's basic design similarities with the ThermoQuads is no accident. But, there are profound differences between the ThermoQuad and the Street Demon. The uninitiated may call it an updated version of the Thermoquad. But it really is a total redesign of the old Thermoquad."


I read the Street Demon took the best attributes of the Thermoquad, the Quadrajet and the AFB and implemented them into the Street Demon.