Nissan D21 Terrano Pathfinder Hardbody 2.4L Carburetor conversion to Toyota 4K / 7K carburetor

In the persuit of better fuel mileage, I converted by Nissan Terrano 2.4L Z24 carburetor to a smaller 4K / 7K Toyota Carb. The best mileage I got was 6km/li pure city driving and 9km/li pure highway. A very noticeable power loss on uphill climbs, flat level acceleration is bearable. This could work if your Terrano is a City slicker running mostly on flat roads. But if your Terrano is an backroad bunny, the power for off road and hill climbs may not be enough.