Table: greg_pursley_1999_stats
Columns: year
races
wins
top_5
top_10
poles
avg_start
avg_finish
season_rank

Question: What is the number of races having top 5s over 2 and average starts of 6.5?
SQL: SELECT "races" FROM greg_pursley_1999_stats WHERE "top_5" > 2 AND "avg_start" = 6.5

Question: What is the lowest average finish having top 5s of 0?
SQL: SELECT MIN("avg_finish") FROM greg_pursley_1999_stats WHERE "top_5" < 0