This one looks to be for a downward directed pressure hose, I believe the discussion was (loosely) about 68 small blocks brackets which my undersatnding was for the 68's, the pressure hoses pointed upwards from the pressure port on the back of the pumps. (in line with the filler tube) 351W's were introduced for the 69 model year and I believe the 351W's had a downward pointing pressure hose and if I am not mistaken, the 302's began pointing downwards in 69 model year too. I have no knowledge that there was a changeover late in the 68 model year to have used a downwards pointing pressure hose, possibly others have had different observations.
Richard aka:"Junkyard Dog"