Highest flowing sbm heads?

B3422w5 said
be curious to see those moved center heads actually go down a track and see a time slip.
up until now they have been notorious under performers

I know a set of heads done out there that made 800 on the dyno, and ran 9.80’s(133 or so) in a scienced out super stocker, that weighed 3200 ish
Long way from 800. ET slip will tell the tale