Bought this a while back to fix the fuel inlet on my quadrajet. Only used once, works beautifully and is a permanent fix for worn and leaky threads. It incudes the tap you need, helicoil installation tool, 4 helicoils and instructions. Makes is worth your while if you have a few carbs to do and don't want to disassemble them and sent off to have it done. If you have a drill press and angle plate at home you can DIY. Its easy. I paid $180 for this kit, yeah I know, it was expensive, but extremely hard to come by and would like to get $125 for it. I'll include shipping in the price. This works for all quadrajets 1972 and earlier.