Hemi Exhaust Manifolds

Anybody out there got an opinion on factory full flow 4 bolt exhaust manifolds from 300 series 392 chryslers? I'm running a 331, got clearance problems, and these things look like they fit fairly tightly against the block, but I've never seen a real pair, and don't wanna buy blind.

Tanks
Mark

 

They fit tight to the block and flow pretty good. There are two pairs listed on ebay right now. They will probably go for about $650, maybe more.

 

I used the shorty headers that PAW and HotHeads sell they hug the block pretty good.