How cool are these! For perfect proportions, we make them from big diameter stainless steel material with a recess lip on each side to hide the gasket and move the bolt head closer to the banjo. We kept the wrench surfaces short, knocked the corners off the hex and rounded the bolt head too. They’re sized to fit both 5/16" and 3/8" hose, with plenty of fuel flow guaranteed.
Do not use with 3x2 Stromberg progressive linkage kits.