i installed some sl4-440's in my 94 gsr and there leaking from the manifold. I put the new rubber inserts in the manifold but there were some metal rings in there also and the fuel rail wouldnt fit on with them installed so i took them out and the fuel rail fit then but now they leak!!! are the metal rings the problem or is there something else i need to do??? do the new rubber seals have a direction there supposed to go in??? and am i supposed to remove the metal ring that was in there before??? thanks for your help and sorry bout the long post....