#116808, "RE: Neon DOHC / Eclipse RS" In response to In response to 8
The only thing that is interchangeable is the long block, all related long block gaskets, and the head components such as valves, adjusters...etc)
The fuel pump will not work as it is longer than the RS/GS fuel pump. The Spool boy mod will not bolt up to your RS without "alot" of customization. Just buy a Walbro specific to the RS/GS.
Alot of people use the Vortech SFMU as a starter regulator. I'm still using it after 8 years of turboing the car.