LOL! Above mine as well, hence the question!
I suspect it but I don’t know for sure.
But I got a guy! He’s actually said a couple of times he would love to port my Magnum R/T heads. They did pretty good as cast. He loves everything about them & more so since he has ported regular Magnum heads. He took one look into the intake port and gave a low growl “Oh YEA! Oh yea! Ya gotta let me port these babies.” He wants me to try them out on my destroker engine. The 352. FYI - 360 block with a MP 3.45 crank using Bill Richardsons crank spacers for the small journal crank & a 4.03 bore +.018 flat top slug.