There is a 150hp Muskateer sitting right next to my machine in hangar. They tell about 90-100 kts cruise with 30 liter per hour, so pretty much comparable to an old 172.
BUT, there is one important thing to consider: the landing gear is quite womanish and finicky, due to the only thing between you and ground is a hard rubber block = no shock absorber, no swinging band steel spring, no catholicity for a hard landing. You have to be VERY good in landing and a hard landing will destroy the gear mounts.