There is a group on Yahoo called carbureted supercharger and you do have to apply for that group and be approved by the moderator but there is a really good section under "photos" is the modification process ypou would need to do to make a carter or edelbrock a blow thru. It is in a folder called "Carter AFB mods" on the first page. This group is a little out there though and trying to follow the dicussions is really tough due to the format but the section I went to the group for is very informative. On more than one post where some guys were arguing FI vs. Carb it was stated sveral times that an Edelbrock Thunder AVS will support 7-13 lbs of boost righ out of the box, don't know if it is true or not but I'm not spending $300.00 to find out. Also on the sight for McCulloch super chargers also has good instructions for several different carburetors.
http://www.vs57.com/carb.htm
