SBM Edelbrock/Speedmaster Head Data

If the bowl is too large then the rest of the port needs help to 'catch-up'?
2.080 valve was the 'Dulcich' mod too, on his mega heads.

But Edelbrock Victors are already AAR/TA offset pushrods, didn't know that.
Who makes the 1/4'' offset rockers then?

Can I mention Vizard and or Weslake as the Brits have done good work too.
''Small fast flowing ports are always better than big slow ports'', they say.