[Myron Piatek]

I don't recall if anyone had any other options, but there can't be many. Even IF you could find the correct thread heli-coil, inserting it will block off the 2 slots that actually channel the fuel up to the squirter nozzles. The only solution I found was to insert a heli-coil close to what you need and force-thread a hollow screw into it. If it's close, the threads should conform. This way you still have the hollow hole in the screw to channel the fuel. But if you need some of the bigger squirters, just having the hollow screw may cause a restriction. Holley recommends the hollow screw with the OEM channels when going over a certain size squirter.