340 Six Pak...smokin', or blowin' smoke?

Il have to look if I have more porting shots of the 6 pack. I used a long 6" shank to get the porting deep into the ports. I think I ordered them from Mc master Carr. As far as the mod man it's just a big open plenum I don't think that intake would work well with anything mild you would have to have a upper rpm engine to take advantage of it plus a lot of cubes would be best. I have read that dual 4bbl and a triple 2bbl is the way to go on it, not a single 4bbl.