When i took off the fuel rail there were 3/8 nylon hoses. I was going to replace it with some fuel injection hose and grabbed some gates 5/16. It fits snug but not tight, should i use 1/4 for a really tight fit or stick with the 5/16. Would the flow effect anything? Im going to use efi clamps as well. Anyone ever replace the fuel rail crossovers that can lead me in the right direction on sizing?