I got my 440cc RC injectors for sale, asking
$220 Shipped to US, They do not have o-rings, just use ur stock ones.
We all know RC injectors dont go in all the way in the manifold, so one day I tried experimenting and shaved off a lil bit of the outside material to see if it would fit, i shaved off very little and realized it was not going to work. It has absolutely no effect on how the injector performs, they are in good condition however like any injectors, I recommend you have them cleaned up before putting them on. I just took these off this morning since I was having rich idle problems(thinking it was bad injector, it turned out to be the o ring was blocking the tip of an injector (Do not double up on the O rings! lol. I learned the hard way. Just one one oring)
http://www.abdalafer.com/streetz/FILE0088.JPG
http://www.abdalafer.com/streetz/FILE0089.JPG
Turns out the rich idle issue i had was not even the o rings, it was the tps. I am having same problem with my new injectors, i still dont recommend to double up on the o-rings.