Ported 452 or Edelbrock RPM

Oh and it seems that heads started as 84cc, but I will call Edelbrock and ask them if they had this casting with 75cc chambers just to be sure. This is just my guess as I could not find this casting number with chambers smaller that 84cc.

Here in the specs you can see cc info:
http://www.jegs.com/InstallationInstructions/300/350/350-60839.pdf