Name the most that attendend when the venue was td banknorth garden and the series of montreal leads 3-1
CREATE TABLE "eastern_conference_quarter_finals_vs_8" (
  "date" text,
  "venue" text,
  "visitor" text,
  "score" text,
  "home" text,
  "decision" text,
  "attendance" real,
  "series" text
);
SELECT MAX("attendance") FROM "eastern_conference_quarter_finals_vs_8" WHERE "venue"='td banknorth garden' AND "series"='montreal leads 3-1';