This FAST fuel injector spacer kit for LS3/L99 and L76 engines allows the use of OE fuel rails with FAST 102mm intake manifolds. It provides the necessary spacers and interface to adapt OE rail hardware to FAST 102mm intake designs such as part numbers 146102B, 146103B and 146104B, simplifying installation when retaining OE rail components.
FAST OE Fuel Rail Kit LSXR LS3/LS7