Edlebrock carb.

[Blazin]

Anyone have experience with Edlejunk carbs? I had one years back on a 350 in a Camaro It was a pile of crap. the guy I sold it to put a fuel regulator on it and said it was like he added 50 HP to the car. My 86 K30 454 I bought a few months back has one. You shouldn't have to regulate fuel to a carb in my opinion.
 I had the air cleaner of my truck this morning to spray weasel pee down the manual choke cable
( another bright idea ) it won't pull out and then when you do get it out it won't return unless you get under the hood. I noticed the primary side of the carb was all blackened up like it was not burning all the fuel? I also noticed that the secondaries are open about an 1/8 of the way and do not close all the way even when pushed with a screw driver? My fiend tuned the carb with a vacuum gage and a tomming light, it did make an improvement in how it ran. However it still has a stumble when letting the clutch out in second gear on take off, ( first on the shift knob ). It also back fires when I let off the gas, if I down shift from top gear and let it run out it back fires like a shotgun going off under the truck. Like a key bang if you know what one of those are, turn the key off, wait a few seconds, turn the key back on! The bang is from fuel building up inside the exhaust, when you turn the key back on it explodes! Remembering this from when i was a kid and thought that was the coolest thing I am thinking it is dumping to much fuel, and is not burning it. My oil doesn't have a fuel smell to it though?

[Swims350]

well I have some experience with them as we run two of them one on my monte and one on our truck now and on our 86 k10 we had.

We bought them new so no real problems.

One had a leak and flood over problem I recently rebuilt it and put it on our blue truck runs great.

Now here's one thing you mentioned I know in our case....

backfiring after letting up, do you have a smog pump on it or A>I.R. pump? That mae ours do it exactly like you said. Cut the belt off it and it hasn't done it since.

If he done it with a vac. guage the idle mixture should be correct, but the butterflies not closing concerns me, sounds like it might need a rebuild. $40-45 buys a rebuild kit and it's simple to do. It was the first carb I ever had apart or rebuild and was easy.

[Blazin]

They guy I bought the truck from gave me the receipts. He bought it brand new about two months before I bought the truck. I have only put about 1,000 miles on it since I bought it two months ago. Smog pump is long gone from under the hood.
 Sounds like it needs a real carb to me, a Quadrajet.

[Swims350]

hmm how big a carb is it I wonder.

Maybe it's a big old 800cfm or something and it's too much.

That or maybe he didn't run a fuel filter or air filter on it. We ran one without an air cleaner and it ruined it pretty quick, started flooding out and over and leaking on the intake.

[Blazin]

Had both filters on it when I got it. Plus I put a new fuel and a new bigger air filter. I doubled the height of the filter he had on it. It now has one about 4" tall instead of the 1 &3/4" he had on it. It has an open element chrome ( rusty ) air filter. They are about useless as you know what on a bull, on a truck. Problem is a stock close element set up doesn't fit on an Edlejunk. I am going to try a regulator for now. once winter is over and I don't have to have the truck at a moments notice of a storm coming I am going to have a quadrajet rebuilt for it. Any fuel regulators out there better than others?

[Toolmaster]

I have used a Holley and it seems to work well on my application. I also installed gauges on the inlet and the outlet. Mine is a low pressure system that only needs 1.5 - 2psi. (Holley low psi electric pump, regulator with a Webber carb on a 1.3 4cly)

[TexasRed]

That dang near sounds like it's got way too much fuel pressure. I don't think a 800 cfm carb would affect the 454 that much. Are you sure that it's your secondaries that are open? The thing that controls the vacuum secondaries is right above the throttle plates. That may be what you are looking at. It's kinda offset down there and when the conditions are right, the secondary plates are allowed air flow. Fuel pressure should be around 5.5 PSI MAX. What kind of pressures are you running? I'd pull the airhorn and check the floats, jets, springs, and metering rods.

P.S. oh yeah, check your plugs!

[VileZambonie]

What # carb do you have? The Edelbrock carb is just a Carter AFB and is a very user friendly carburetor. They're great to get to know and easily tuneable. One nice benefit is the body and bowl chamber. It's a sealed unit, no gaskets or diaphrams to leak fuel all over the top of your intake.

[Blazin]

I haven't dove into it deep enough to check fuel pressure. I have no idea what number it is. The receipt does not have the number. I will look into it a little further in the next few days. Just figured I would get some input before hand.

[VileZambonie]

look on the front of the carb where it bolts to the manifold. Something like 1406 etc

[76 k10]

ok i have a 2 Edelbrock one was a 600 and one was a 750............the 600 was a really good carb for the crate engne it was on but the 750 just sucked i tryed to put it on 3 motors and it ran like poop on all 3 of them but i rebuilt it and changed the jets and that made no change at all. im a holley guy all the way!!!!

[NevadaNeal]

ive had good luck with them,i had one on my 383,before i swicthed to a modded q-jet.and i have a 600 in my 85 e350.the 460 dont care what carb it is as long as it gets the gas it wants,but still way better then the smog motorcraft that was on it.

[unbludictable]

Blazin, I am new! I've been eyeing an edlebrock intake at AutoZone!  Just wondering if you feel the same way about edlebrock intakes as you do carbs?

If so, what carb/intake do you recomend for my '76 GMC 350/350 trany(with a shift kit)?

All advice is good for this newbie!

[VileZambonie]

Edelbrock makes good intake manifolds. If you have a mild cam go with the performer.

[Blazin]

Yeah I have no problem with the intake. I mean how can they screw that up. Its cast aluminum! I know there are differences but mostly in the flow / mechanical aspect. But and intake is an intake pretty much! I am a body man I couldn't match and intake, carb, & cam if you paid me!