Getting ready to freshen up my Carb and trying to figure out which kit to get. I started looking for kits and, well, quite a few kits for the 4150 and just as many prices. My carb has a list number but does not match up with the Holley master list. Maybe a prosystems #! It does have.150 needles and 50cc pumps.

Anyone have any recommendations?

Called Pro-Systems and they will piece together a kit for my carb. Same needles, diaphrams and all. Custom 'kit' so to speak. All for 40 bucks shipped to cali! Last year they were not in a position to do this i guess. They are now though!