Hank, no one has ever said that the 194 cylinder head doesn't flow good. It can, its the chamber shrouding that kills it. It is designed for the 194 engine, thats why GM only put that head on 194's and none of the other 6's. Its designed for that engine alone that has a 3.563" bore size, putting it on the larger bore 230,250 and 292 engines that has a minimum of 3.875" bore, 3/8" larger bore than the 194 when these engines are .060 over, is what makes the 194 head a bad choice for anything other than a 194 engine. Thats why an open chamber BBC head makes more power than a closed chamber BBC head all day long, it breathes better in the chamber. Sissell even said that back in the 1970's in the "How to Hot Rod Big Block Chevy" book.
Nolando, the methanol injection cools the intake charge and helps reduce detonation allowing high boost levels to be obtained.
