I have an aeromotive fuel rail and 650cc precision injectors for a 2001 type R head. The injectors fit in to the head (and are able to be pushed a good ways down) but the fuel rail side is to big. The injectors fit into the rail up until the o-ring (which seems to be too big). Any one had this problem before? a credible shop i got the injectors from told me they would fit, (not sure if theyre meant for K series or not). Let me know what you guys think. Thanks a lot.