Hi.. Looking for a 750-780 4150 Holley, divorced choke, vacuum secondaries,   complete, no mods, no stripped threads. A GM OE carb would be nice but not a prerequisite in good condition...

Thx in advance

I'm sure I have one, and even have a rebuild kit for it.   I'll take a look tomorrow (Sunday).

Here you go, Holley List-3310-2, it has a metering plate on the secondary side.  Complete with rebuild kit.  I doubt it's ever been apart, as the Holley sticker would likely have been removed.    I can even provide a chrome air cleaner.

I also have an earlier List-3310-1 with a metering block on the secondary side, with an automatic choke.  I can provide photo's of it if you want.

Here's the 3310-1 with the secondary metering block and automatic choke.