There aren't that many options available for front facing throttle body type setups for BBC. A local guy has the Edelbrock Pro-Flo setup on a TT BBC Chevelle but I think it'd be questionable fit under the hood of a F-body. It seems just tall enough that near the front where the throttle body is I think it may be an issue. Edelbrock has decent measurements available on their site for most intakes so that may be worth a look. Same intake they use on their Musi co-branded crate BBC engines with EFI option.
Your best bet is probably a Precision Metalcraft (site sponsor) or Hogan fabricated sheetmetal intake if you can swing it. Those are basically custom and I've seen some with fairly short runners which would help keep the height to a minimum.
Then if money is no object there's always the option of a billet piece like those available from NRE, Steve Morris, et al.
