I really think they use the same carb.
I modified the dog snot out of mine.
My needle was as straight as a nail.
It is radically double tapered( too much work but very nice)
It is lengthened and adjusted with extra washers on top of the slide.
My main jet was too large even after I tapered the needle.
I am too cheap to buy the complete drill bit sizes so the local dollar store bits last just long enough to drill brass.
Then solder and try again.