Quote:

The passages on the 440 Source housing are smaller than a stock housing but they are big enough. The problem is the pump, it flows well at high rpm but not enough at low rpm.




I am wondering if this is the case. The 440Source pump impeller is radically different from stock, the Milodon, and the Edelbrocks. I have the 440source housing with the Edelbrock pump and it works OK, maybe not as well as it might with the stock housing but its not too bad.... (???)