Final 5-0,
I appreciate the info, really, it's that I first stated "aftermarket, bolt-on" and now, am seriously considering porting the original lower intake, which I'm told for my application would probably be just as good as an aftermarket such as the ones you mention. Do you not agree? My other option is just as you say, track down a "mild" used Performer/Typhoon (replacement, correct?) or TFS.
I'll inquire about the cam in a separate post.
Thanks again for your patience and insight!