I recently recieved a couple "factory replacement" fuel lines from Carpenters and noticed a huge difference in the size of the opening on each end. This is the line that goes from steel line to fuel pump and at the other end there is the same line that goes from tank to line under the floor on a 61 F350. They may be ok for a 1bbl 6 cylinder but any large performance engine requiring fuel would starve and the people would probably never know it. I brought the subject up to Carpenter and they directed me to a couple other suppliers that they get them from. I am also curious as to the outcome, Where is the QA these days. I also tried to drill one out to near original size but the inner had not enough meat in it and I pulled the hose off to find nothing left.

Female end

Male end

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?