I have one. Stock runner length ported to match my ported heads (still for sale BTW). This intake was originally sent to be extrude honed but due to the B head intake design, they couldn't do it. So it was sent to another place (can't remember the name) and was hand ported. The runners were extracted and epoxied back in after the work was done. I also have the matching plastic IMRC delete plates. The top has been machined open for a mono blade throttle body (also for sale) and the EGR and idle passages have been epoxied up. I can get you pics if you like.
If you want to buy the heads too, I'll make you a sweet package deal. Otherwise let me know how much of it you want. For just the ported lower intake $500.