Has anyone used the fattywagons injection line heaters as seen here?
Fattywagons
If so, what was the result (i.e. are they worth it)
Lastly, instead of having them wired up so they are on at all times when the car is running, has anyone tried hooking them up to a toggle switch? My idea would be to preheat the lines for a minute or two before cold starting, then once the engine reaches operating temperature, switching off the heaters.
Comments/suggestions?