flattened portion to expand in an attempt to take on a more circular shape an enlarged volume will be created thereby decreasing pressure under pressurization will cause the degenerative flattened portion to collapse thereby reducing the overall volume within the crossover hose and therefore inhibiting the decreasing pressure by reducing the overall volume of the fuel rail assembly 7 the main damping effect is provided by the structural portion of the crossover hose 30 referring now to fig4 through 7 an alternate preferred embodiment fuel rail assembly 57 is provided having fuel rails 10 and 12 identical as those previously described the crossover hose 60 has two female end connections 64 which are fitted over the neck orifices 24 of the fuel hose the crossover hose 60 has a flattened portion 62 which has a width which is significantly enlarged from that of the remainder of the crossover hose pressure pulsations are minimized by the expansion and contraction of the flattened portion in a manner as similarly described for the crossover hose 30 it will be apparent to those skilled in art that male end connections can be substituted for the female end connection 64 if so desired typically the height of the flattened portion 62 of the crossover.