Pingel for sure. However, if you are the type that doesnt turn off your petcock every time you stop. You may want to start. The stock one needs vacuum to operate. The pingel doesn't and should you develop a leak or if you are carbed, a piece of trash in the float vale could cause a fuel dump.
Having said all of that, it is a great habit to shut off fuel every time not matter the petcock.
Bodeen