CREATE TABLE table_14954 ("Year" FLOAT, "Chassis" TEXT, "Engine ( s ) " TEXT, "Tyres" TEXT, "Points" FLOAT)

Which engine has more than 0 points and a year before 1984?
SELECT "Engine(s)" FROM table_14954 WHERE "Points" > '0' AND "Year" < '1984'
SELECT "Engine(s)" FROM "table_14954" WHERE "Points" > '0' AND "Year" < '1984'