My friend is using a fuel rail from garage advance with some 880cc rochester injectors... and the o-rings they came with, to go between the rail and the injectors, are way too small. I checked several local fuel injection shops but I can't find any o-rings that will fit. I've tried contacting garage advance many times to see if they could send me some o-rings, but I can never seem to get through to them. The fuel rail is the one that looks like a towel rack, with feeds at both ends and a return in the middle. Anyone got any suggestions?