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_70 (year VARCHAR, chassis VARCHAR)
### Question:
Which year did Ray Crawford the Kurtis Kraft 500g chassis?
### Answer:
SELECT year FROM table_name_70 WHERE chassis = "kurtis kraft 500g"