The 1970 calendar was a good calendar but this is what I would have done if I was in charge for F1.
6th June
British Grand Prix
20th June
Spanish Grand Prix
4th July
Monaco Grand Prix
11th July
French Grand Prix
25th July
Belgian Grand Prix
2nd August
Dutch Grand Prix
16th August
German Grand Prix
23rd August
Austrian Grand Prix
6th September
Italian Grand Prix
20th September
Canadian Grand Prix
27th September
United States Grand Prix
11th October
Mexican Grand Prix
25th October
South African Grand Prix