anyone ever use those fuel rails? right now i have them on a stock LS6 intake with siemens 60lb injectors. 7 out of the 8 holes are sealing lol. i switched out injectors tried adjusting the rails. but can't seem to get the number 8 cylinder to stop leaking. just wondering if anyone else has ran into this prob or not. thanks in advance.

 

I have a set on my LS6 intake and have for the last 4-5 months without any leak issues. Have you sure checked and lubed your o-rings?

 

I didn't know they had LS1/6 compatible rails, I have
the intake & rails combo (85mm) on my car and it's
been trouble-free. I even stripped the rails of the
anodizing (but masked the injector socket holes to
keep that all nice and smooth). I used Vaseline to
lube the O-rings.

Might suggest swapping the #8 injector with #6
just to see if it's the rail position, the rail being
out-of-position (these would not move w/ inj)
or something like a nicked O-ring.

I recall seeing some stuff about needing to use the
O-rings that came with my "update kit" on some
injector types, though my stockers went in clean.
Are you reusing old O-rings or nice new bungey
ones?