Well, I have a question about tunnel rams. I remember reading a while back, going to show my age, but the article was about taking a tunnel ram for a B block and making spacers out of pylwood so it could be used on a RB block. Could you do that and open the ports up to M/W size? If you did that would the runners in the manifold be large enough to support the M/W ports in EZ-1 heads? I know it would work, but would it work as well as the Indy tunnel ram? If not what could you expect to loose with this set up? I know it is only a guess, but just wondering.