Help w/SARD 550cc injectors!

[Turboed240]

Okay. I have a set of these things and a shop that built my motor broke my first set of these things. Now I got a second set. What is the correct way to install these things. It looks like the o-rings that come with the injectors are too big. I have tried "lubing" the o-rings and the twist/push method but these things are not gonna go in. What's the trick here? Anyone?

[navysnail]

mine slid right in when i changed mine ( oe nissan).

maby they really are too big, have you tried to contact the company and find out whats up