Kerney, First, there is no such thing as a
"GOOD", "CHEAP" rebuild kit. This is especially true when it comes to holleys. The stories you hear about those ^*#% holleys are usually the results of bullshit rebuild kits. I don't know offhand what a list 7128 is, the 9510 is part of a ford part#. If you are going to rebuild it, get a holley brand rebuild kit. They cost a little more, but it is money well spent. If you don't have experience with carbs, holleys in particular, buy the holley book by HP books and read it cover to cover before you start the rebuild....Also, I think this is a ford factory carb for that motor, try to use it if you can. Don't be fooled into a 650, 660, 750, 780 etc. Ford engineers worked hard to come up with the best carb to use on that engine, so don't jump to change it too quickly....Again, good and cheap do not go together when describing carb kits....Moneypitt