Are you looking at a sequential EFI? If it is not sequential, some fuel puddling may still occur on your intake valve before it opens. This usually causes no trouble at all. The OEMs went to sequential only because pollution laws kept getting tighter and tighter. Shelby Dogg is right with the brake line. He even told me of a fuel filter that is a perfect fit for the brake line flare fitting. As a side note, I dont remember the exact info, but somebody thru amazon was selling the 99 vette fuel filter/fpr for 15.00 bucks. this is getting to be the standard fpr for injection swaps. its set at 58psi, is not adjustable, and can be mounted real close to the tank, making for a short return line. the short return, not connected to the fuel rails may cause some flow issues, but all the OEMs do that now with no trouble