It wasn't a blanket statement as I have pretty extensive experience with the Super Victor, so in this case it is my actual experience that I am sharing. Maybe you should have enlarged your intake much larger than you did, In your case I have never used those heads so I cannot predict what the results would be. Unlike you I DO get extensive R&D time on my dyno so maybe you made me realize I give away too much and I'll shut my trap from now on. J.Rob