Hi,
I know a bit about them,They are a brand new Carburetor that Jon at Ponycarbs is making.They are suppossed to be pretty good from what I have heard. Like most things from pony carbs they are pricey.Do you happen to have an air compressor? If so with a $15 dollar Rebuild kit from Autozone you could do a good job with your original carb. If you decide to take on the rebuild yourself? If you run into problems or have any questions feel free to pick my brain I am very knowledgable on the 60's Autolite carbs,I just rebuilt the 1100 on my 68 a couple of weeks ago.