Air flows: Street Dominator & Edelbrock RPM

The only Hughes test I see for the Street Dominator was when they weld modified the plenum to 4150 style from the original spread bore carburetor opening. We have not modified the plenum but quickly ported the runners and gone from 270 cfm average to 306 cfm average. I don't know when we will get to do more work, but one port was so bad it got a little more attention and picked up 53 cfm.
Wasn`t that weld up thing done to an m1 ? I have a 1200 cfm throttlebody, w/ 8 injectors in it, I don`t think it would work very well w/ a dual plane. The thing is actually bigger than the interior of the carb pad on a perf. rpm. Hood clearance is tite, top of the filter is about 3/8" from the bottom of my 6 pack scoop,w/ a drop base bottom plate. (hence the interest in the torque 2), it`s lower than an RPM. Am thinking about getting hughs to rework a torquer 2 w/ their street n strip porting. the $$ ain`t there right now tho! LOL