Hello all. I have a standard 1.6 pinto and after a couple of miles it coughs and splutters back fires a couple of times and stops. Leave it til the next day and it starts first time but when driven it’s stops again. The car only passed IVA last October so I haven’t been far at all. Since this started I have: Changed the manual fuel pump for another. Filled the tank with new petrol (super) and put in an additive. Removed the old distributor and replaced with Bestek ignition system. Set the timing to 10 degrees as per Bestek instructions. New NGK spark plugs. New HT leads. Re Plumbed the fuel lines and taken out any sharp bends. Checked the diaphragm in the carb to see if it had a hole and was pulling air in. All to no avail! Next step is to swap the carb and after that I’m stumped. Has anyone had the same problem and or any clue what it is I can do to put this right? Many Thanks