Thinking outside the box
Thanks for that informtion, dergrosse372. That just underlines my point that we Mopar L-A and Magnum guys and gals need an affordable, hi-flow cylinder head for sale in the aftermarket for our motors. I think it can be done by raising the roof of the intake poer on existing designs by adding longer valves, but I'm not an engineer, so I could be very wrong about that.
A taller head (to accommodate the taller intake ports) would require longer head bolts and longer pushrods, but all the other valve-train hardware should work with existing parts if the valves are not moved, laterally. That would help keep the cost down.
Probably not ever gonna happen, but, it's a nice dream... :)
Bill, in Conway, Arkansas