[n86121]

Unless you are trying to maintain the antique style, I'd step up to a shadin or equivalent.

I was the first person to put a shadin in my helicopter in the 1980's. A helicopter fuel gauge is only accurate sitting on the ground with the engine off ...for at least 3 minutes.

The 337 turbo fuel flow meter is actually a pressure gauge that must be connected to the fuel manifold, as I recall, and to the turbo outlet pressure.

Double check that, it was 25 years ago.

I wasn't thrilled with a fuel line over my passenger's knees.

I recall from 25+ years ago the rear cessna fuel flow gauge would jump to 20 gph on idle because the vacuum side to the gauge would drive it nuts.

A Shadin, or equivalent, will give you a lot more utility. More accurate, of course, but also gives you lots of other info if connected to any sort of GPS system.