Added to favorites list! Thanks!!

 

Status update.......

-removed axles, tore brakes completely apart, cleaned and/or replaced basically everything in there. pads, springs, adjusters, bearings, fluids... everything.

-frame and everything behind the cab has been undercoated (actually used bedliner because its a bit more durable)

-blocked off EGR with a little aluminum block off right at the removed EGR valve. removed EGR vacuum lines

-Cleaned up "farmer wiring"

-Rebuilt carb to some extent. And here lies my problem and question.... Motor seems to run great, but still wont idle. WAY too much fuel. Floats are lower than they should be just to slow the fuel down, but still getting way too much. For now I turned the idle way up which is compensating for the excess fuel. Allowing it to run enough to move it around the shop and such.

For the effort and reliability I think I am just going to replace the carb and intake manifold. New EGR delete intake manifold and new carb.

Question is, should I get a factory replacement Holley 4180 (more expensive) or go with a basic Edelbrock 750cfm (cheaper)? The edelbrock setup will be identical as our 79 f250 and will delete almost all of the vacuum system.

Thoughts? and where is a good place to buy carbs?

 

You'll get allot of different opinions, but the 4180 is a 600 cfm, and the opinions I seem to want to trust tell me to stay with a 600.

Edelbrock 1406 - 600 cfm
Edelbrock 1806 - 650 cfm

 

Agree, ok,

Factory Holley 4180 or Aftermarket Edelbrock 1406? I haven't looked, but I can bet the edelbrock is cheaper.

AND.... where would you go to get either?

 

Edelbrock will be cheaper, Im wrestling with the thought of ordering one myself.
I just want to make the right choice. The 1806 seems to have a few adjustments that the other dose not.

1406 $299
1806 $350ish

Both come with a free chrome fuel line attachment.

or

Its hard to find on there site, but they have Jegs kits which comes with the fuel line chrome air filter and hardware all in one kit for a few extra bucks.

I'm not sure if the factory air filter will fit or not, Id like to keep it, so let me know!

jegs.com

 

Bty, Im tired of holly's leaking and blown power valves, and paying for rebuild kits etc.. So, i\I'm going with Edelbrock myself.

also, they have factory reman's 1406's for $249.

 

EDIT

The setup we have on out 79 460 is an EGR delete manifold and a 750 Edelbrock carb with almost NO vacuum system. The motor is beefed a bit though, where this 84 is stock. That starts fine all winter too. Thinking of copying this (other than maybe a 600cfm, not a 750). Doing away with everything vacuum. IIRC the only vacuum line goes from the carb (high vacuum port) to the distributor.

 

I just put a new edelbrock 1406 on my truck yesterday. The stock air cleaner fit with no problem. I wouldn't go much higher than a 600 cfm carb. I'm not using the truck to race and don't need the extra flow. Bolted right on and started excellently. Yes, the only vacuum line the carb uses is for vacuum advance and it has 2. One for ported and one for full manifold. I have mine at the ported vacuum line right now. Seems to work fine. Look on Amazon for a reman 1406. They're reasonable.

 

If you are replacing the carb I would not go back with a 4180, unless you live in California.
I have a Holley 4160 0-80457s on an Edelbrock performer intake.
If I didn't have all the emissions to hook up and deal with annually I think I would be better served with an Edelbrock carburetor too.

In my experience, Edelbrock carbs seem to run a little "small".
Not that they won't flow the stated CFM's, but where the Holley 600 works well with a stock to mild 460 the Edelbrock 600 seems not enough and the 750 better suited.
This is only my opinion, and I have been wrong before, so take it for what it's worth.

If you have fueling problems and you KNOW the powervalve is good, check the accelerator pump and check the air bleeds in the front of the primary bore.
Clogged bleeds will cause raw fuel to run into the primary.
(ask me how I know... )

 

Looking at Jegs website....

Maybe dumb question, but for an additional $16, Why would you not get a 750 rather than a 600? Doesnt this just mean that it has the ABILITY to flow 150 more CFM than the 600?

 

Better metering signal at idle with smaller bores, but as I said I WOULD go with the 750.

 

Thanks, I didnt see the reply as we must have hit reply at the same time.

Good info. I will most likely be getting an edelbrock in the near future. Will let you know how it works.

Another question... I was trying to read the tag on the rear end. the best I can make out is 345 or 365. What would the stock be (for what appears to be a high speed rear end?)?

It turns out the truck IS a Heavy Duty and had 3" brakes in the back, for those who were wondering.

 

There is probably a number(s) buried under the nut.
The tag is usually on a stud, while all the other holes have bolts.

Give us the whole number. You are only reading the end.
4.10's and 3.55's mostly

 

3.73 and 3.08 were options as well, but not as common.

 

Ok. I think it must be a 3.55 then. Its just the middle one I couldn't make out. definitely three something five.

Looks like I can get an edelbrock performer 1411 (750cfm) locally for $320. Cheapest I have found so far once you include shipping.

Thanks again for the help guys! I will try to get some progress pics this week for the "What did you do to your truck today" thread... Should have gotten some when the brakes were open and all clean and shiny new.