Call GRIFFIN or BeCool and ask what style will work best in your situation.
Does an E body have more room between the motor and radiater than a early a body? If so you may be able to use a short fan clutch and stock AC fan which beats electric fans hands down IMHO. If you have room then a four core aluminum with clutchfan and fan shroud would be your best option to stay with a 22 inch opening. Also make sure you use what ever seals the factory used to keep air from coming back around into the radiater a second time.