Dear Umair
I don't think that this would make much difference at all. Our cars are vti already fuel and air are mixed in a better way and they produce less pollution than our carburettor cars.
I am already planning to get it cleaned again from them as i want to visit Hunza. The climb from Chillas to Hunza is too much for a 1.3 liter car with full load and you need all the help which you can get. Hi octane wont help much as the car would need oxygen for the hi octane to help. Also you can't get Hi octane in Chillas or Hunza, I searched but could not find any pump selling them.
oh the oxygen is there it is simply not in sufficient quantity. Also you car will bog down even while going to babusar in a lot of spots and will not accelerate above 40 km.
Did I say 40 ? I meant 30 or even 20 km in some places even on level ground .
last year after passing Lulusar, i saw a Bolan Van not being able to accelerate on level area in front of me.I was going at around 30 with full accelerator in second gear and at that particular spot there was only a very slight incline.