fuel line fitting dimensions;
i chopped up a perfect set because i keep seeing funny numbers from some folks
the stainless fitting on the TBs is 7.8mm/0.307"
the gray John Guest fitting at the used O-ring 9.44mm/0.372"
the square black John Guest(?) fitting at the used O-ring 9.34mm/0.368"
so the John Guests are ~3/8"-0.375"......which makes them a nominal 5/16"/8mm fitting
the CPC quick disconnects measure 10.68mm/0.421" or ~7/16"
which makes them a nominal 3/8" fitting
MV screwed up......wasn't the fitting manufacturers