Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the greatest point of an Entrant of connaught engineering alta straight-4 engine before 1957

### Inputs:
table_name: table, columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']

### Response:
SELECT MAX Points FROM table WHERE Engine = alta straight-4 AND Entrant = connaught engineering AND Year < 1957