SELECT MAX("Crowd") FROM table_33702 WHERE "Home team score" = '7.7 (49)'
What is the biggest crowd when the home side scores 7.7 (49)?
CREATE TABLE table_33702 (
    "Home team" text,
    "Home team score" text,
    "Away team" text,
    "Away team score" text,
    "Venue" text,
    "Crowd" real,
    "Date" text
)