Is that a metaphysical question? Why is there only one way to make power when using a low deck Mopar engine with Max Wedge heads? I don't know the answer to that question, it just is the way things are. Maybe God doesn't want us to have too many choices? Maybe we're being punished for our sins? I'm not sure what the answer is.
If you want more options then build a RB block with MW heads. Then you can use cross rams and box rams and tunnel rams and Super Victors and 440-3X intakes and bunches of other choices.
