A B767-300 can carry 124,000lbs of payload a B737MAX ain't even close. With 189 passengers on a MAX at 200LBS with their luggage that is 37,800 LBS leaving only 24,700 LBS for fuel not enough to go NY to LAX no less Europe. The Airplane was not made for the North Atlantic. So they will not fly with a full passenger load. For the B767-300, 230 passengers at 200LBS = 46,000LBS leaving 78,000ILB for CARGO[MONEY] to get to its Zero Fuel Weight 309,000LBS. Take off weight 400,000 to 412,000. So 91,000 to 103,000LBS of FUEL enough for ALL missions NY to Europe.