No 8.3 should face a jet that has good flight performance and access to 4 long range 18g AAM.
At 9.3 it has good flight performance, 2 Aim9D + 2 Shafrir 2 and flares for ARB. For GRB it has 2 TV bombs + 3 TV AGMs. No other 9.3 or 9.7 has anything similar.
Similar BR fighter include:
F100: much worse missiles, worse flight performance, much worse ATG ordnance, no flares
Hunter F85: higher BR, similar flight performance, similar AAM but only 2, only 2 TV AGMs, flares
Mig23BN: higher BR, better flight performance, worse ATG ordnance, no AAMs, no flares
Yak38M: terrible flight performance, worse ATG ordnance, no flares, worse range missiles
Hunter F6: higher BR, similar flight performance, bad ATG ordnance, 1km range missile, no flares
Harrier GR3: higher BR, worse flight performance, worse ATG ordnance, less missiles, flares
Q-5L: higher BR, better flight performance, worse ATG ordnance, no AAM, no flares
G91YS: higher BR, better flight performance, bad ATG ordnance, bad missiles, no flares
French F100D: same as US F100 but even worse missiles
J32B: better flight performance, terrible ATG ordnance, bad AAM, no flares
The A-4N is outperforming so many planes that are a higher BR. People already cried when the Swiss Hunter was added at 9.3 but this is better in every way and allowed to stay at the BR.