New guy here
i have a 05 cobalt ss that has had alota work done to in prior to me owning it , a awhile ago while driveing, i heard a loud pop and fuel was pouring outta the fuel rail , i decided to order a stage 2 kit from zzp and up grade everything while im at it , i removed fuel rail o rings on injectors look fine but it did notice something, can you all tell me if this looks normal,

 

To it looks like it was manufactured that way.