If I might make one recommendation; it looks like you're going for performance with that build, if I'm not mistaken? Anyways I would highly recommend getting an hp carb like this one. I got one, and it resulted in a noticeable power increase. Your carb looks like it's identical to mine, and this is the one I got.
eBay.com Granted, you may have to re-jet it if you change the filter. Also I had to rig it to make it work but it worked out well.
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