when pushing the stock block past 450hp with stock fuel lines would bigger fuel rails be a good idea when running 42lb injectors with boost?

 

I have been 10.98 with stock rails and 42# injectors but I have moved up and I did end up splitting the stock block in the end. But it was also after 3 years of hard running. It would be cheap insurance IMO. But you do need the rest of the fuel system also no real reason to move up to big rails if you are not gone to do the lines and the rest of the supporting hardware. IMO