A Briggs 375 or similar flathead with the air cleaner above the carburetor weighs less than a Victa 2 stroke as they're an aluminium block vs cast iron.

Powertorque is a great engine, but they will go through more fuel.
I have the impression that the Victa full crank two stroke
with the older metal carburettor like the G3 and prior were better on fuel than the G4 plastic carby the rest got until production ceased.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!