I knew that the pump itself wouldn't make much difference, but I can get the pump and the housing for about $100 and I already have an Edelbrock 6 Pack manifold. I'm not financially able to go as far as aluminum heads though. I was just thinking about adding the aluminum housing and pump, to help take some off of the weight of the engine itself. Of course, it also helps in the looks department as well. I WOULD be interested in knowing thew weight of the aluminum pieces, just to see the difference. Appreciate the input. I would think the difference would be worthwhile, but thought I'd throw it out there, to see if I could find out how MUCH difference there was. Thanks.