What is the torque when engine code is N46B20 and power is ps (kw; hp)@6400?
CREATE TABLE "petrol_engines" (
  "model" text,
  "years" text,
  "engine_code" text,
  "power" text,
  "torque" text
);
SELECT "torque" FROM "petrol_engines" WHERE "engine_code"='n46b20' AND "power"='ps (kw; hp)@6400';