Thanks Brian. Opened up = ported, gasket matched, etc...
As you know, but people new to the world of MoPars & or performance upgrading do not know is that when some head manufactures, stock or aftermarket, produce heads, the ports, intake and/or exhaust, can have different port window sizes.
Flow rates, port sizes, as published by the seller of the head can always be improved. This improvement may sometimes contain a opening up of the port window. And that is what I wondered.
Never having the Indy heads in hand, I wondered.
I also just want to take a second here to personally thank you and everyone else that has shared this info on this thread. It is huge for everyone here looking to up the anti on there engine.