Who is the manufacturer when 150.088 is the average speed (mph)?
CREATE TABLE "table1_2226343_1" (
  "year" text,
  "date" text,
  "driver" text,
  "team" text,
  "manufacturer" text,
  "laps" text,
  "miles_km" text,
  "race_time" text,
  "average_speed_mph" text,
  "report" text
);
SELECT "manufacturer" FROM "table1_2226343_1" WHERE "average_speed_mph"='150.088';