Asslam o Alekum, i want to go to Multan with my family from quetta, but my car RPM is not stable on ideal, 3 days ago i m tuning carb from 3s when they done i check but after night morning start take time and RPM not stable on ideal, and now reading mileage is 98500, engine condition is good , water drooping no white smoke. i want to know what i should do, ? should i change my carb, timing belt, timing bearings, should change radiator pipes and flush the radiator for coolant? should i change all belts ? plzz need experts suggestions,