None really. It can technically run Formula 3 but that's about it. Everything else is too fast or it doesn't fit in year wise.
Its eligible for V5 if that class is running. Vintage 5 Pre 1983 2-stroke factory road racers up to 500cc. Pre 1983 Production based 2-stroke up to 750cc. Pre 1983 4-stroke push rod unlimited displacement. Pre 1983 OHC Twins to 1200cc. Pre 1983 OHC 2 valves per cylinder to 1200cc. Pre 1983 OHC 4 valves per cylinder to 1025cc. Among the eligible V5 machines are the following: Ducati F1A and F1B, 750cc limit; Honda CB750F, CBX, CB900F, pre-1986 Honda VF500, VF700, and VF750; Kawasaki KZ750, KZ1000, Z1, GPZ 550/750/1100, EX500, and EX250 without restrictions and regardless of year; Suzuki GS1000, Seeley Suzuki 750, pre-1986 Suzuki GS 750 (no hybrids, i.e., Suzuki GS 1000 motor in a 1985 mono-shock frame), GS 500 (no restrictions); Yamaha FZ600, Seca 550, Seca 750, Virago 980, TZ 750. RZ 350 with maximum displacement of 450cc.