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_19704392_1 ( modified_torque__lb_ft_ VARCHAR, standard_hp VARCHAR )

### Question ###
What is the modified torque (lb/ft) when the standard hp n/a?

### Accurate SQL ###

SELECT COUNT(modified_torque__lb_ft_) FROM table_19704392_1 WHERE standard_hp = "n/a"