What is the time value for the rider Brian Finch and a rank greater than 3?
CREATE TABLE "1970_isle_of_man_production_500_cc_tt_fi" (
  "rank" real,
  "rider" text,
  "team" text,
  "speed" text,
  "time" text
);
SELECT "time" FROM "1970_isle_of_man_production_500_cc_tt_fi" WHERE "rank">3 AND "rider"='brian finch';