Al,
These motors cost the same to build as it does a good small or big block of that HP caliber......$15-20+ grand. Like I tell everyone, Good parts cost good money, regardless of what you build. The disadvantage to this platform compared to the others is there is not alot of used inventory of high caliber parts floating around, like with the big blocks, small blocks, Gen 2 Hemis etc.... You want to build a stout NA deal, get ready to pay just like you would any other motor, if you do not have anything to start with.

NOBODY is making 700+ HP NA with these motors, with junkyard core and some bolt ons. Power adders, that's another story.....