I have always used Melling oil Pump's for many Year's . And they make the Housings for most of the other Brands Boxed and Sold . Lately Melling has had some Bad Rap on Failed Housings Reported ? But I wounder if Some of that Damage is Caused from improper installment of the Pick up Tube ? I have always Like their M55A Z/28 Pump . Now they are saying not for High Performance use ? For Performance They make what they call their Select Pump's with Bolt on Pick-up tube .