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_49 ( starts INTEGER, year VARCHAR, avg_start VARCHAR )

### Question ###
What was the highest number of starts in 2007 when the average start was over 17.6?

### Accurate SQL ###

SELECT MAX(starts) FROM table_name_49 WHERE year = 2007 AND avg_start > 17.6