It ia an Edelbrock/GM 10038470 intake, made for the Super Duty head. When I pulled the intake and head off, I discovered that the stock head had been extensively ported, to match the giant ports on the intake. The carb is a #1406 600cfm Edelbrock Performer. The engine has never been running long enough to find out if the carb is well suited to the head/intake combination. That is about to change though, as the new Super Duty head will be installed soon.
Here's some junky webcam pics of the intake:
Forget even trying to run that carb!!!! Its almost too much for a 305 V8, and it is too much for a 2.8 V6!!! That carb is made for a mild 350, you only would want about half that. A 390cfm four barrel holley would be pushing it. Maybe if you disconnected the secondaries, but even then you are still pushing it. Just find a 300cfm 2 barrel unit and you should be alright. Holley makes 2 barrel carbs around that number.
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07:15 AM
dennis_6 Member
Posts: 7196 From: between here and there Registered: Aug 2001
Model 2300, classic finish, manual choke, 350 cfm, two-barrel, carburetor
This carburetor flows 350 cfm and features a manual choke, a center-hung float bowl, and a universal throttle lever with a Ford A/T kickdown. It combines budget performance for the street or strip and a classic finish for one great performing package .
Forget even trying to run that carb!!!! Its almost too much for a 305 V8, and it is too much for a 2.8 V6!!! That carb is made for a mild 350, you only would want about half that. A 390cfm four barrel holley would be pushing it. Maybe if you disconnected the secondaries, but even then you are still pushing it. Just find a 300cfm 2 barrel unit and you should be alright. Holley makes 2 barrel carbs around that number.
I've actually been looking around for a cheap 390 Holley for quite some time now, almost a year. Money is just a little on the short side. I'm also seriously considering blocking off one side of the carb, effectively turning it into a 300 cfm carb. I'll probably go with the Holley, though, because I have concerns about even fuel distribution to the cylinders if I disable one side of the carb I already have.
My dad didn't let me get the Holley after some guy in a speed shop told him "An engine is just a vacuum pump, it will only take in as much air as it needs..." It took me almost a year to convince my dad otherwise, and he just told me 2 weeks ago that maybe him and the guy at the speed shop could be wrong, and that the carb is too big.
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11:26 AM
dennis_6 Member
Posts: 7196 From: between here and there Registered: Aug 2001
If thats all there was to an engine, we wouldn't have throttle bodies to limit airflow. Forget blocking one side of the carb off. Sell your carb or trade it for a 2 barrel holley or rochester unit. The 390CFM is a 4 barrel and still may be too much. Though it might just cause the engine to bog. Some places like sdpc2000.com sell remanufactured carbs. They don't list it you just have to search.
Just found something for you. 2 barrel carbs are not rated the same way as a 4 barrel so 500cfm 2barrel isn't the same as a 500cfm 4 barrel. That being said Summit has a rebuilt holley 2 barrel 500cfm part number SUM-210010 for $159.95.
I would ask their tech support if this would fit your application and if it does, I would go that route.
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06:39 PM
FastIndyFiero Member
Posts: 2545 From: Wichita, KS Registered: Aug 2002
Well, something to remember is that I am planning on 200+ HP, with an emphasis on the +. I have actually driven it almost 100 miles with the 600 on it, in town and on the highway. Things didn't get moving until 4000 rpm. That was with the stock, ported head, too. Now, with the worked over SD4 head, I'm pretty sure the 390 won't be too big.
[/hijack]
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06:58 PM
dennis_6 Member
Posts: 7196 From: between here and there Registered: Aug 2001
The carb is bogging to 4k because its toooo large. 200hp or not the displacement is still too small. I would ask holley or summit's tech support before you learn the expensive way. Holley has a few charts for selecting carbs on their website too.
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08:12 PM
dennis_6 Member
Posts: 7196 From: between here and there Registered: Aug 2001
According to holley a 390 is for a mild 300cubic inch engine. So a 390 is good for a smog era 305. Which is about double the displacement of your 4 cylinder.
Vacuum Secondary Carb Chart Vacuum secondary carbs are typically used in street applications where performance and economy are important considerations or in race applications where a car has limited traction and needs a "hit" that can be tailored to the traction available.
More info from Holley... How To Calculate CFM: Engine size (CID) x maximum RPM / 3456 = CFM CFM @ 100% volumetric efficiency
Approximately 608 CFM would be required for this engine. However, most Street engines are capable of achieving only about 80% VE; a modified street engine with ported heads, headers, intake and carburetor can achieve about 85% VE; a fully modified race engine can achieve 95% or greater VE. The CFM number arrived at with this formula must be factored by this percentage.
So using holleys example.. 153CIx5500RPM/3456 = 243 CFM The 243 CFM would be at 100%VE, you won't have that. You won't even need 243 CFM. A 390 CFM carb will be much too large and a 600 CFM carb is insane.
If you factor in the 85% VE as holley suggest the number is 207 CFM and this at the rather large assumption that your engine will be making all of the 85% VE. Its probably closer to 200 CFM.
[This message has been edited by dennis_6 (edited 01-28-2004).]
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08:32 PM
Jan 29th, 2004
JohnF Member
Posts: 2622 From: Redeye's Ride is from D/FW, Tx. Registered: Jul 2001
anyone else notice that the intake for the turbo is(or atleast looks like it's) attached to the housing that's on top of the tbi(or carb?)
ps. it looks like that air filter on top is attached to where the pvc opening(guess he couldn't find a small round filter like other people)
The intake is hooked up to the air cleaner on top of the valve cover. Air cleaner is also over the intake side of the PCV system. The left side is where the PCV valve goes to the intake.
Noone answered what is up with the cone filter in here? I can't imagine any reason for it being where it is.... Maybe just to cram as many different intakes in the engine compartment as possible?
------------------ '86 2.8L In Progress... '86 2.5L turbo put to sleep
The intake is hooked up to the air cleaner on top of the valve cover. Air cleaner is also over the intake side of the PCV system. The left side is where the PCV valve goes to the intake.
well it doesn't look like it is in the pic. it looks ass backwards(the turbo), the side of the turbo facing the camera, looks like it should be the intake, because on most turbo's I've seen that's where the filter is; the exhaust for the compressor housing is on the snail 90 degrees to the intake. unless you can provide some pics of the setup (like 360 degree pics); it still looks like it's sucking from the engine and blowing it out the filter(unless of course the turbine is plumbed ass backwards as well(but even if the exhaust is plumbed backwards you shouldn't see too much boost and you'd be replacing the turbo frequently)
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08:27 PM
Fiero5 Member
Posts: 8882 From: Arecibo, PR Registered: Jun 2000
Noone answered what is up with the cone filter in here? I can't imagine any reason for it being where it is.... Maybe just to cram as many different intakes in the engine compartment as possible?
That cold air intake will be fed by something pretty cool very soon Stay tuned......
Our first thought was to try and place a cold air intake in the aero nose area and run a pipe back to......then we realized it would be much easier (and better looking for show/display purposes) to place the intake in the actual engine compartment area and find a way to get cold fresh air down to where the intake is to then feed the engine. Updated pics of Jordans green fast & furious beast coming soon.
Steve
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10:17 PM
Feb 18th, 2004
LeeM Member
Posts: 57 From: Belle Fourche,SD. U.S.A. Registered: Nov 2003
Looks like what the trunk in my red Fiero11 has for goodies. It's funny how small the trunk seems to look, but you soon discover how much it will realy hold. Grocery shopping is always a kick, as I will have people in the parking lot stare to see if I can actually get everything in the trunk
flame 
