[gunslinger]

Once again, the only problem with these is the possibility of the motor getting burnt out and issues with it sealing properly when closed.

The main problem is that the driver has no way to tell when the butterfly is closed and will continue to hold the switch in the 'Close' position even after the butterfly has made contact, thus overloading the electric motor.

They work great for a while, but eventually they will burn out unless they have an automatic sensor that stops the current when the valve is closed.

I think either going with a regular cutout with the wing nuts or a cable operated version is a little more reliable...(or maybe making a setup like they have on the Vette using the GM parts)