Hi all, bring up an old thread. I just purchased a choke tube set from NPD for my autolite 4300 equipped 67 A code. I tried installing it this morning to find it is not the correct tube. Double checked numbers to make sure I purchased the right part and it was according to their catalog. It appears that it would fit the hi po with the 4100 carb, but as you know the 4300 tube enters the choke at a completely different angle. Question is, "Does anyone know where to purchase the correct tube? Are others just making their own? Unfortunately I do not have an original to use as a pattern, so I would have to rely on pictures to make one. Car details are in my signature.