Holley carb id help please.

Picked up a Weiand tunnel-ram today and it had a dual-line Holley carb on it. The no. on it is List 3318-2 and under that1384 ,looked in all the web-sites and found nothing except 3310 but this is 3318,may be stupid but not blind yet. Any help out there?

 

I'm looking in a factory Holley Carburetor Numerical listing catalog...No 3318...Just the 3310 universal 780.....or 65 396 Chevelle depending on if it's an A or 1AAA or 2A or 3AA

 

I checked the best source on line, and there is no 3318 shown as a Holley List No for OEM or aftermarket.

Is it a 4150 or 4160 carb or something else? Electric choke or manual? Throttle linkage on what side? take a few pictures. I assume it is not a spread-bore because of where it's mounted.

Bet someone here will get it right and fast - almost always do.

sorry my best efforts were not enough.

dj

 

Let's see some close ups!!!

 

After straightening ou the damage by the no.It does look more like a 3310.Here are some pics.

 

that's what a 3310 looks like. I bet that's what it is.

 

Yep! Looks like the R-3310 750 to me!
I bought 6 Holleys from some dude a while back for 50 bucks.. He didn't know what he had!
1. is a #4557 L-78 780 or LS-6 carb w/emissions..
2. is a #3310-2 750..
3. is a #3796-1 600 for a '67 GT 390 w/ auto..
And I'm still trying to figure out what the other 3 are.. So far, a pretty good deal for only 50 bucks...

 

That appears to be a 4160 style..Should be stamped 2A or 3AA near the 3310 list number

 

Dang Dueces that is a good deal.This is what I lucked up on Weiand single carb CR 1984 model no. tunnel-ram,never installed with fill tube,set of chrome 2-piece S.B. Chevy valve covers with breather all still in box,set of Hooker sb headers,new for pickup or car,got it all for $150.and he throwed in the carb.even had header gaskets and set of new collectors.

 

since it has a metering plate and not a block for the secondarys i would say its a 750 cfm.. all the 780's that i have seen came with metering blocks on the secondarys..

 

Trucked up,all it has under the 3310 no. is 138, but book does show it has the older mounting plate,just don"t know how old it is.

 

Those numbers I mentioned above are listed as 780 CFM 4160 in the Holley number catalog.

 

I would have jumped on that if I had the $$$... Do yourself a favor and don't use the header gaskets!! Buy a set of exhaust manifold gaskets to use with the headers.. I learned my lesson with those cheap paper gaskets with headers... Those things will burn out in a week... Maybe less!

 

It's probably the 3310-2 model which is a 750...

 

Bingo!!...
The original 3310's also came with the down leg venturi boosters and milled throttle shafts plus thinner throttle blades...

 

Here's a couple of pics of that L-78 396-402/375 or LS-6 454/450 carb I was tellin' ya about... List-4557 which is a 780 cfm made for a manual trans car with emissions... The 3310 carb was designed using all the features of the 4557 carb with a manual choke..

 

The Holley DZ Z/28 carb was identical except for the jet sizes and maybe the power valve had a different Hg number on it....