Building a 408 with IndyBrocks

I didnt know those Indybrocks didnt come CNC ported from indy. I remember Indy claiming they went 306. maybe you could get them bare?
Use offset rocker gear.
A guy on Moparts several years ago who lived in Florida had a set of those on a roller cammed 416. He posted a lot. Remember his car weighed 3000 pounds and he went 9.76@ 138 with them. Forget his screen name now, but he was on there forever. Was a trans specialist and i think his name was Woody.