The 715cfm Holley carb (with the Lemans fuel bowls) was specific to a Shelby GT-350. Are you restoring a Shelby or building a clone? Tony Branda www.cobranda.com is/was selling them for $995 each. Occasionally one pops up on Ebuy (last one I saw went for $500). Hitting the Shelby owners club sites (SAAC) might be your best bet for trying to find a used one. Good hunting!
Thanks guys for the responces. I do have a '67 GT-350 but the Holley was replaced years ago with an autolite with auto choke. I would like to restore it back to original configuration with the correct carb.
You can buy one on eBay and I think Tony Beranda Shelby parts has a few but very expensive. I have one in good running condition with an electric choke that needs nothing just bolt on. I might be persuaded to sell.