Now for the last little secondary trick. What you do is get a straight edge and scribe a line from centre of the tiny little fuel hole that is just above the secondary air flap's all the way down to the centre of the hole in bottom of top of carb. Now drill two holes just below where the secondary flaps close once again very carefully. You will have to remove the airflaps to do this and will have to go at a slight angle upwards. drill in untill you go through to the existing tunnel going to the top holes. Fill the top holes with fibreglass and sand back smooth. What this does is instead of the air flaps having to open and then create air flow past the holes to start flow of fuel, as the secondarys open and the air starts to open the air flaps the air is already passing the holes so the fuel will come through much quicker. In the picture you can see where I have moved the hole from B to A but you can probably move it down a little further than this.
