Alright....
I'm working on rebuilding my carbed 350 and until recently was hopeful that I would be able to use the carb that I have on there. After learning from my father, a mechanic as well as the guy who was going to rebuild my carb, that it looks too shot to put back on such an upgraded engine, I've decided to purchase another. I'm not really sure what to choose. I know that everyone has their ideas on which is better, and well i just want a little more help picking. I'm pretty much between an Edelbrock or a Holley, from what I hear both pretty much the best. I'll be running the rebuild which will be bored .30 over and will have an upgraded cam. The intake I'll be running a Weiand 8150 Intake Manifold with dual plane. This is pretty much what I've got so far. I don't know if this is enough info for anyone to suggest anything for me, but I'd appreciate any help I can get

 

650 double pumper from holley buy the electric choke kit if you need it. if you don't need the choke then a 650 proform with mechanical secondaries would be an excellent choice as well.

 

What do you have now?

Holley for performance, Edelbrock if you're cheap.

 

I have a Holley right now, which is upsetting because I was hoping that I wouldn't have to buy such an expensive carb. I'm having a hard time finding a carb though. But maybe I'm saying this because I don't really want to spend 500 for a carb but I know that I'll be getting what I pay for and I shouldn't waste my time with something that's cheap when I want something thats really worth it. Anybody have some numbers for Holley Carbs that would match my set-up (1985 350cu.). Everytime I look for something (been looking on Summit and Jegs)? I mainly come up with remanufactured that only seem to fit up to 84. Is a remanufactured just as good or should I look for new?

 

Exactly what Holley do you have?

What's wrong with it that it has been deemed unusable by looking at it?

Application recommendations are made based on emissions legality. No Holley or Edelbrock is legal on a 3rd gen in any of the 50 states of the United States.

 

I know it's not going to be street legal but is there anything in particular I need to look for in order for it to basically fit, or will any square bore, 4-barrel fit the intake I noted above?

I don't know exactly what Holley I have because the #s don't match anything when I search it. The only number that comes up with anything is 6904 MB. This number is stamped on the front of the carb (toward the front of the car) on the piece where the paper fuel filter is located (it is located on the front of the carb)

At the following site there are some pictures (not close up, but you can kinda tell what i'm talking about):

http://www.cardomain.com/ride/2994914/2

The top picture on the page shows the carb the best. If you maximize the picture you can see where the fuel line connects to the carb (rubber line) on the top of that metal piece that runs the same length of the car is where 6904 MB is stamped. In the carb under the Air Cleaner is stamped Holley but no-where else. I don't know if this helps at all but maybe someone can figure it out, because I've had no luck.


I can't tell you exactly what has deemed it to be in need of replacement because I don't know much about carbs. But my pops told me it would be better to replace it because it would be too difficult to find some of the parts that we would need.

 

That's a spreadbore carb, not a squarebore. That's why it bolted up to your stock manifold. It is mechanical secondaries, but it is not double pumper (one of the few carbs of which you can say that). Flow about 450 CFM, supposed to be an economy replacement for q-jets.

The number should be stamped on the front of the choke tower.

 

Alright, well that makes more sense. I'll have to look for that number. But going back to a replacement carb, Is there anyone of the Holleys that can be recommended. I was looking at the Holley website and it said for a 350cu. either a 0-4776 or 0-4777, does that sound right? I definitely want around a 600 or 650 cfm, at least I'm thinking that that would be a good set-up.

 

five7kid,

The only other number I could find was 487 stamped on the choke plate. But, I guess it doesn't really matter if i'm going to replace it with something better.

 

Okay, I don't really remember where the number is on that carb (had one about 13 years ago).

That looks like a stock manifold, which will only mount a spreadbore carb. In order to use a 4776 or 4777 (or any squarebore carb), you'll need a different intake, or a spreadbore to squarebore adapter.

 

I won't be using the stock intake. I'll be getting one for squarebore. My main question is, will any square bore Holley carb fit a square bore intake?

 

Any 4160 or 4150 series, yes.

The 4777 would be a good choice. A refurbished unit you get from Holley or Summit would be fine if you wanted to save a little money.

(Sorry, so many similar threads lately, I missed the part about the Weiand intake manifold.)

 

No worries, I really appreciate the help on this one. Like I said I don't know much about carbs so it's nice to have someone who does know be able to tell me what I need

 

Ok so here are two that I found. Any thoughts on either one?

http://store.summitracing.com/partde...5&autoview=sku

and here is the second:

http://store.summitracing.com/partde...5&autoview=sku

 

Sorry, I forgot about this one too.....

http://store.summitracing.com/partde...5&autoview=sku

 

That one, IMO.