Table: danny_ongais_results
Columns: year
chassis
engine
start
finish
entrant

Question: What Engine had a Finish of 27?
SQL: SELECT "engine" FROM danny_ongais_results WHERE "finish" = '27'

Question: What Engine had a chassis of March 85c?
SQL: SELECT "engine" FROM danny_ongais_results WHERE "chassis" = 'march 85c'

Question: What Engine has a Finish of 21?
SQL: SELECT "engine" FROM danny_ongais_results WHERE "finish" = '21'