Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_8 ( wins INTEGER, points VARCHAR, team VARCHAR, year VARCHAR )

### Question ###
What is the mean number of wins for the norton team in 1966, when there are 8 points?

### Accurate SQL ###

SELECT AVG(wins) FROM table_name_8 WHERE team = "norton" AND year = 1966 AND points = 8