Having a problem with my edelbrock carb. It's a 600 cfm Model 1405. Just rebuilt it and checked float levels and set idle adjustment and it's clean as a whistle. Also running a fuel pressure regulator. Set it at 5 lbs pressure. Should add that I'm running it on a 390fe(fresh rebuilt). Carb seems like it's getting too much fuel. Exhaust is rich and as motor builds pressure,smoke increases. Also should add carb is 5or6 years old. Could it be shot? Quess I'm wondering if I'm missing somthing or is there a fix. Also vacuum is all good, Any thoughts?

 

Confirmed fuel pressure with a gauge, or just going by what the dial says?
Check the metering rods to insure they are fully seating.

 

Replace it with a holley 600 vacation sec.

 

As stated before check pressure with a gauge and check to see that metering rods are seated. These carbs are pretty easy to tinker on.

 

This is only your 8th post and your leaving a comment like this? That will make some of the senior members turn on you before you even get started.

 

Personally I have had bad luck with edlebrock carbs and very good luck with holleys if that offended you too bad, maybe thicker skin is in order. The edlebrock design is old especially the 1405 with is merely a copy of a carter afb from the 60's.

 

I've used a ton of old stuff thats 10x better than new crap. Just because you've had bad luck doesn't mean they're all bad.




Consider being less of an ***...

 

If you would like to take this post off topic and launch an attack on me then you are worse than I, a pm might have been better. My apologies to the op for taking this off topic. Best of luck with your carb. Perhaps your jetting or air/fuel is off after the rebuild

 

,,,,,

 

Ummmm ... ... that Holley you recommend as a replacement ...
... do you know what it was originally put on?

I know ... it came originally from Ford on top of some 430 cu in engines in the 58-61 Lincolns, 58-59 Mercuries, and some 59-61 Thunderbirds. Earlier versions of the type were seen on mid 50s Fords, just smaller sizes. I have an original Holley catalog dated 1973 that list every Holley carb to that date and if it was OE on anything, what it was. I've only had that book since 1974 when they got the new one at Cash's Auto Parts in Lynchburg and I was there hanging out when this one was pulled and almost went in the trash.

I also have a Holley list# 1850 600 cfm vac sec carb in the basement, I jerked it off my '77 last summer and replaced it with a Edelbrock 1405 and now I get better mileage and still easy starts and NO leaks and no power valve to blow out and no replacing the accelerator pump diaphram ever so often.

I've rebuilt Holleys so many times, I can do it my sleep, mine and my buddy's. Twin 550s, 600s, 650s, spreadbores, 780s, 850s, triple two bbls with two 500s and a 355 center, etc since my first in 1970 .... give them time they'll all leak. Easy to tune though, but so is a Edelbrock once you take time to learn them.

 

Well how about this....I run Holleys....Edelbrocks....and Motorcrafts....Iv'e had good luck out of them all.

I don't recommend Holley unless you have a little experience and have the time to set it right.



You didn't offend me at all....but what you posted didn't help the OP at all.

 

If you have one of those Mr Gasket or Spectra type FPR (fuel pressure regulators) with the dial with the numbers on it that looks like this .....



.... and you set that, you likely wasted $$$ on it. ( Don't feel bad, I did it too .... I swapped my Holley 600 off last year for the Edelbrock 1405 600 cfm carb and tested my fuel pump pressure and found mine to be just exactly on spec at 7 psi, which is a solid 1.5 psi above the max recommended for the Edelbrock. I yielded to temptation, bought one of those. Truck ran like crap, loaded up, smoke black, like the choke was on. I pulled out the drive way and go up the hill and it ran so bad that I had to stop and roll back into my driveway while the engine cleared. I tested pressure with my gage, it limited pressure at idle .... but as soon as you reved the motor, up went pressure to 7psi. The FPR would chop it only at low volume rates.)

You need a good reliable FPR, like the Holley 12-803 and set it using a Tee with a fuel pressure gage in line between it and the carb either permanently or temporarily and remove tee and gage and place in your tool box. I use a "Vacume and fuel pump pressure tester" myself, as there is no need to leave a gage under the hood that I know of on a street veh. I left mine on for a test drive, used a longer hose and zip tied my gage to the cowl. I set the FPR for a gage reading of 5.5 and that's what it maintains all the time. Carb is great! No leaks, better mileage, still starts easy.

 

Nothing wrong with an old design , I'm an old design, been working on engines since 1957. Never had a holley 2bl or 4bl yet that never leaked , for sure if you left it sitting a few weeks. Carter AFB was and still is a good carb. My 460 has a holley , have to keep it tuned all the time. My 302 has a Edlebrock , all i have to do with it is shine the chrome on it ever so often,stays in tune.

 

Why? He didnt attack anyone personally, are certain members emotionally attached to their edelbrocks? I'll agree he didnt offer much in the way of helpfull info on the subject but I doubt anyones going to get too upset by his post, if so, I agree, they need thicker skins.

 

I will admit, the comment irritated me a little, but only in the sense that it was typical holley "fanboy" retort knocking the entire edelbrock carb line. Those guys that think "If it ain't a holley, it ain't worth crap" typically don't know how to tune anything but a holley, and can't understand how a carb can just work, for years, without needing constant attention. Their carbs demand it, so they adopt the same trait..........