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The Bellanca 28-92 had a Menasco C6 in each wing, and a Ranger V770 in the nose (neither of which were known for their reliability.) The 28-92 had a range of 3,000 miles at 250 mph.
There were problems with the test flights and Papana had a disagreement with the factory which resulted in the cancellation of the order, and of the proposed flight. The aircraft did take part in a number of famous races though, before ending its days derelict somewhere in Ecuador.
Much information here.