Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_84 (wins INTEGER, points VARCHAR, year VARCHAR, class VARCHAR, team VARCHAR)
### Question:
What is the average wins in 250cc class for Bultaco with 8 points later than 1966?
### Answer:
SELECT AVG(wins) FROM table_name_84 WHERE class = "250cc" AND team = "bultaco" AND year > 1966 AND points = 8