How many points did the Weslake v12 get in 1966?
CREATE TABLE "complete_formula_one_world_championship_" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "points" real
);
SELECT MAX("points") FROM "complete_formula_one_world_championship_" WHERE "engine"='weslake v12' AND "year"<1966;