holley carb model #?

[C4CorvetteGuy]

ok, i'm pretty sure this is a 4150, 750 cfm, double pumper after looking on the internet, but i want to make sure, because the exact list number i have found on my carb i never found on the internet, nor have i ever seen before... the list number is 4779-9. the 4779 part is pretty self explanatory, my problem is the "-9" it is NOWHERE, and i've spent hours looking, please help me find out if this is an important difference, or a date that it got off of the assembly line, thanks in advance

[MrPbody]

C4,

Welcome to AF. FWIW, "the internet" is not the best place to find correct information on Holley carbs (or many other things, too!). A Holley catelog or a REAL carb shop would be better.

The "list" number is key when buying service kits or "special" parts. For the most part, a 4150 is a 4150... When you contact your Holley dealer (DO NOT buy a cheaper kit), give them that number. The "-9" is an engineering "level" (same design, updated features over the previous number).

We use AED (Advanced Engine Design) in Richmond, VA. (804) 271-6076, talk to John.

Jim