My computer crashed and I just got it back. I never imagined I would get such a response, especially about a little comment. I love to talk about bbc's, but insight about our wifes vs. our passion in the garage is also interesting. Believe me, the ol' motor projects have been a sore spot with her since we've been together. They just don't get it, do they?
Anyway, thanks for the response, I appreciate it. As a man on a strict budget and engine knowledge in progress, I love talking to people about chevy motors.
So as the 100th person to ask on this forum, any suggestions as far as heads and valvetrain?
What we've got so far:

1990-91 Chevrolet 468 short block. 4 bolt main, Mark IV.
Cam is a Crane Cams Mechanical Commander (older cam, but never used) 272/280 @.050" Duration, .659"/.679" lift.
Valve springs will be Crane Cams 1.460" diameter, 120# seat pressure, 394# @1.175" open load pressure.
TRW pistons .580" domed forged aluminum, dome volume 50cc.
Rods are cast.
Crank is cast, unfortunately, but oil holes are radiied(?) and chamfered, prepped and lightened, as I was told.
Rotating assembly has been balanced.
Carb is a Holley 750 3310-3 with vacuum secondaries, but should be good for now.