CREATE TABLE table_22187 ("Year" FLOAT, "Car number" FLOAT, "Start" FLOAT, "Qual. speed" TEXT, "Speed rank" FLOAT, "Finish" FLOAT, "Laps completed" FLOAT, "Laps led" FLOAT, "Race status" TEXT, "Chassis" TEXT)

What is the largest laps led with the lotus-ford 34/3 chassis?
SELECT MAX("Laps led") FROM table_22187 WHERE "Chassis" = 'Lotus-Ford 34/3'
SELECT MAX("Laps led") FROM "table_22187" WHERE "Chassis" = 'Lotus-Ford 34/3'