I just got a new reed valve (CDH G2(As pictured below)) and I was just wondering where I could get a bigger neck for my card as I have a Mikuni VM18 and don't want a restriction at that point.
I don't see anyone selling just the intake. You might have to find the right size tubing (I think it's 23mm) and take it to someone who can cut off the existing tube, enlarge the hole and weld the proper size tube on what you have. You may need to clamp a short piece of tube to the carb and run a short length of silicone hosing between the two.