Lundstrom also examined Japanese and American records from the Guadalcanal campaign and determined that once you eliminated the overclaiming by both sides and looked just at the loss records, the A6M and F4F fought to a statistical dead heat in that campaign. (SInce the A6M was a lighter, cheaper aircraft attacking consistently 600 miles from its home base, that's actually a damn good record for the A6M.
In his Osprey book, P-47D Thunderbolt vs Ki-43-II Oscar, Michael John Claringbould attempted a similar analysis from the American and Japanese records during the New Guinea campaign, (I'm going from memory here too) and he determined that the P-47 shot down 2 Ki-43s on average. That's actually a good result for the Ki-43 in that that plane uses up less than half the resources of one P-47.