Here's the part number for the Pro Flo 4:
Edelbrock Pro-Flo 4 EFI Systems 359000
Here's the part number for the Pro Flo 3 (no longer available):
Edelbrock Pro-Flo 3 EFI Systems 32530
Here's the link to the installation instructions:
http://www.edelbrock.com/automotive/misc/tech-center/install/3000/Pro-Flo-3.pdf