I am currently trying to decide on my next purchase and trying to decide what would have a better out come. I have a 1980 D50 Sport that I need to either replace the carb or rebuild it. Now I have been looking at 2 conflicting products: a performance Weber carb, and a universal cold air intake by K&N. The Weber has it's own set up that I could slap a K&N filter on later, but I don't know if that would be considered cold air intake or not. And if I do go with the cold air intake, I'll just rebuild the carb. Anyway, I'm hoping someone that is much more mechanically inclined than I can help me decided. I'll post a pic of the carb in case if that will help in the opinion process.