What is the smallest number of points with an Engine of climax v8, and a Year of 1966?
CREATE TABLE "complete_world_championship_formula_one_" (
  "year" real,
  "entrant" text,
  "chassis" text,
  "engine" text,
  "points" real
);
SELECT MIN("points") FROM "complete_world_championship_formula_one_" WHERE "engine"='climax v8' AND "year"=1966;