I just had a Sentra carb opened up and cleaned last week in Kamuning. It cost me P350 for the labor, plus P40 for the thinner, and P40 for a gasket. The job was ok and the car runs much better now.

I cant remember the name of the shop but its on the right side if you're coming from EDSA (around 50meters or so). The shops are parked next to a house with a blue wall and a small sari-sari store.