Who's 440 heads flow the best?

I have spoken to Fred a couple of times, very interesting gentleman. The heads that big dummy was advertising for a friend a couple of years ago on this forum are the ones I now have. I have also bought a new unused set that I then sold to a buddy. On those new heads our local guy (Keary Laminac of Midland Performance) just began to work on the intake ports, just did a basic clean up of a port and was at 400 cfm, he believes there is quite a bit left in them. When I bought these heads (originally bought and used by Eric Shelton out of Georgia) I did all kinds of net searches on them, they did have some porosity issues in the castings, but if you got a good pair they seem to produce plenty of hp. The other issue besides rarity, is finding an intake if you want the cast single 4500 version, not many seem to be produced. I believe the initial cost of these heads when they were new and the aforementioned porosity issues is what killed them. My motor is going together with them now, 540 ci, mega block, 4.5" crank, custom solid roller, just ordered pistons this week. I can't wait to get it on the dyno to see what it does. I am still just looking for anyone else running them so I can compare notes. The guy with the Fury from Finland is running a set in a (I think) twin turbo set up, he is coming to drag week this year, so that ought to be a test for them. He was good enough to sell me his cast intake because he is using a sheet metal intake on his injected set up.