SaaB MFI-17, they had Tunnans there too so they weren't against the MiG-17s alone.
This is a little off topic
Its a MFI-9, the little brother to the -17. And no, they did not have J-29:s. SwAF used Tunnan in Congo (Katanga) early -60, Biafra is a part of Nigeria and the war was btw 67-70.
But to go back to topic: Air war isnt won by the one with best number in the fact sheet. Aircrafts are part of a system of system and all has to work out well in order to win.
In the case of the Brewster so must it be the dream for the AH top ace wannabe. Be a top scorer in an F4U or something like that is one thing. But the day someone become the No 1 ace flying the Brewster i think he have earned the best pilot title. that would be an accivemenet.