I got my 90 degree tight radius 6an to 5/16 barb in the mail for the fuel rail.
I put it on to test fit it and it clears. I also held the hose in place to see how it would fit with the water and oil feed lines to the twins.
It will work but I’m still waiting for my 6an f to f 150 degree fitting in the mail. I’m hoping it will have a better angle to the pri rail.