On the intake side of it, it's all chevy related, or a specific intake design flaw remedy, if even that. I even ``kinda doubt that idea, but would need to look at the intake design of the engine in question that supposedly picked up power from this.
Otherwise it's a main loading issue, more evenly distributes load to the mains, which I wonder if torsioning comes into play, 454's can toss rods like it's going out of style.
:read2:
http://www.moparchat.com/forums/showthread.php?t=115062
Yeah we knew this by the 1st post....