Table:
text: Gyula Marsovszky
Grand Prix motorcycle racing results
Grand Prix motorcycle racing results
Year_ Class_ Team Points Wins
1961 500cc Norton 3 0
1962 350cc Norton 0 0
1962 500cc Norton 0 0
1963 350cc Norton 0 0
1963 500cc Matchless 1 0
1964 125cc Bultaco 0 0
1964 350cc Norton 0 0
1964 500cc Matchless 7 0
1965 250cc Bultaco 0 0
1965 350cc AJS 0 0
1965 500cc Matchless 2 0
1966 250cc Bultaco 8 0
1966 500cc Matchless 13 0
1967 250cc Bultaco 8 0
1967 500cc Matchless 7 0
1968 250cc Bultaco 1 0
1968 500cc Matchless 10 0
1969 250cc Yamaha 2 0
1969 500cc Linto 47 0
1970 250cc Yamaha 28 0

text: Gyula Marsovszky
Grand Prix motorcycle racing results
Grand Prix motorcycle racing results
Year_ Class_ Team Points Wins
1970 500cc Kawasaki 18 0
1971 250cc Yamaha 57 1
1972 250cc Yamaha 0 0
1973 350cc Yamaha 12 0
1973 500cc Yamaha 4 0
1974 250cc Yamaha 0 0
1975 250cc Yamaha 0 0
1975 350cc Yamaha 0 0

Question: Under Gyula Marsovszky, what are the average wins in the 250cc class for Bultaco with 8 points after 1966?

Question: Which class corresponds to more than 2 points, wins greater than 0 and a year earlier than 1973 for Gyula Marsovszky?