Chance9121

Hey everyone, running a fast 102 on my LS7 and I would like to use ls9 injectors. I've read that ls2 or ls3 fuel rails fit these injectors, but I thought those two are different heights. Which rail would I want to run on an LS 7 with ls9 injectors so I don't have to use spacers? Thanks for the help.

rpmextra

you will need to replace the rails anyways as the oem won't fit over the top of the fast. I suggest using the fast billet kit.