Yeah, kinger why does that manifold automatically make more power than an Oval one!? All you are doing is really moving that material out of the way for the width of that 2.5L LIM. I was looking at stazi's 2.5L heads tonight and I have very hard time believing that the amount of material you remove from matching that 2.5 LIM to the oval ports makes a large HP diff. I mean these Nobles are making close to 400 hp with plastic oval port manifolds!