the problem is carb works on vacuum. turbo puts positive pressure into the intake. and with turbo, you need to pay careful attention to fuel management, and carbs lack the manageing abilities of fuel injection. from my experience with carbs and forced induction, the car had an aftermarket custom carb built to handle the varience in pressure. i would suggest just investing into a swap, because i dont think you would get much out of the 1.3 anyways