Originally Posted by stefan
A good composite carb like Sirio's .12 carb beats an aluminium carb by far.
Sirio did swap to aluminium with their .21 carbs and did solve some issues. Isn't it just that today a milling machine and a piece of aluminium is much cheaper than a plastic molding machine?
The most crappy carb I have ever seen was the old Mega P5 carb, it had always trouble finding the right adjustment without hick-ups or jiggering. Most people did seal anything off with a kit or special sealing paste but finally the needle was the cause, you had to shorten it. I think there are many other things on a carburator making a carburator good or bad.....