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Old 01-06-2012, 01:53 AM   #1
dukcaln
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edelbrock 600cfm or 750cfm

so I do have another post going similar too this one but thought I would post this in this section. with my mods and with a daily driver (son driving to school every day) would the 600cfm or 750cfm be a better choice. Mild cam, headers, .30 over on a 72 sb 350... pro vs cons. just thinking the 750 may be too much.... would the 600 run better..... confused
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Old 01-06-2012, 01:55 AM   #2
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Re: edelbrock 600cfm or 750cfm

I vote Q-Jet, but thats just my opinion. Joseph
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Old 01-06-2012, 02:39 AM   #3
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Re: edelbrock 600cfm or 750cfm

i hear you but i am doing away with the q-jet. just want to hear which will be a better fit for a daily driver... the 600 or 750cfm edelbrock. Besides the q-jet is going on a different project
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Old 01-06-2012, 02:51 AM   #4
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Re: edelbrock 600cfm or 750cfm

I'm running an 1806 Eddy AVS on my Hot cammed, Vortec headed, 10 to 1 350 and it works very well...
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Old 01-06-2012, 02:55 AM   #5
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Re: edelbrock 600cfm or 750cfm

Cool your from my hometown... I hear its grown in the last 20 years or so...
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Old 01-06-2012, 02:58 AM   #6
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Re: edelbrock 600cfm or 750cfm

600cfm. I second the 1406
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Old 01-06-2012, 03:01 AM   #7
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Re: edelbrock 600cfm or 750cfm

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Cool your from my hometown... I hear its grown in the last 20 years or so...
Been here for 38 years and yes my how we have grown!!!
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Old 01-06-2012, 03:06 AM   #8
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Re: edelbrock 600cfm or 750cfm

Cool, I went to Elmira Elementary, Will C Wood Jr. High, and Vaca High. Funny thing is I googled my old address and its now considered Dixon... I guess its grown too.
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Old 01-06-2012, 03:10 AM   #9
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Re: edelbrock 600cfm or 750cfm

If you do go with the 1405/6 600cfm, you may need to rejet/rod it quite a bit for a healthy 350. I would seriously look at the 650 cfm 1805/6 AVS series. I run eddys on all my rides and the 1405 would not feed my 350 in the upper RPMs.
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Old 01-06-2012, 11:50 AM   #10
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Re: edelbrock 600cfm or 750cfm

600 cfm is a good size for most mild small blocks for daily drivers.
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Old 01-06-2012, 12:06 PM   #11
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Re: edelbrock 600cfm or 750cfm

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Cool, I went to Elmira Elementary, Will C Wood Jr. High, and Vaca High. Funny thing is I googled my old address and its now considered Dixon... I guess its grown too.
Really, I went to Elmira 1st thru 6th and will c wood (when it was a jr high) 7th thru 9th and graduated vaca high in 89.... small world. I lived in the country off Liesure Town and Popular Rd....
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Old 01-06-2012, 12:12 PM   #12
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Re: edelbrock 600cfm or 750cfm

I have 600 going on my small block as soon as it gets back from the machine shop.
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Old 01-06-2012, 12:15 PM   #13
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Re: edelbrock 600cfm or 750cfm

I have the Summit Racing 600cfm carb on my 290hp GM350 crate motor. Was a cinch to install, have had no issues. Drove the truck from NH to Wisconsin with no problems what so ever.

http://www.summitracing.com/parts/SUM-M08600VS/
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Old 01-06-2012, 12:47 PM   #14
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Re: edelbrock 600cfm or 750cfm

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Really, I went to Elmira 1st thru 6th and will c wood (when it was a jr high) 7th thru 9th and graduated vaca high in 89.... small world. I lived in the country off Liesure Town and Popular Rd....
I lived on the corner of Hay and Lewis roads, out towards Travis... you graduated just ahead of me...
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Old 01-06-2012, 02:11 PM   #15
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Re: edelbrock 600cfm or 750cfm

600cfm.
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Old 01-06-2012, 03:18 PM   #16
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Re: edelbrock 600cfm or 750cfm

I have a Eddy 1406 on my 396/350hp from a 68 Chevelle and it works perfectly. It was on the truck when I bought it 10 years ago and I've never touched it. I do not know the engine specs but I think it was rebuilt to factory specs as it runs smooth and perfectly. Anytime I've walked on the truck its never bogged so it supplies enough gas under load for the big block.
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Old 01-07-2012, 01:35 PM   #17
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Re: edelbrock 600cfm or 750cfm

We went with the 600cfm. Got the manifold and carb installed late yesterday and ran out of day light. Will finish up today with linkage and fuel line, and fire it up. Looks awsome... I will post pictures when finished. thanks all I think your comments helped me decide the 600cfm would be a good fit
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Old 01-07-2012, 01:48 PM   #18
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Re: edelbrock 600cfm or 750cfm

You'll be way happier with that 600 cfm carb.

Personally I would have used a Holley 1850...

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Old 01-07-2012, 01:52 PM   #19
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Re: edelbrock 600cfm or 750cfm

I have a buddy that has the holley and begged me to buy it from him.... I might give it a try since he wants to do a trade for some stereo stuff for it.... think it will make a difference over the edelbrock
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Old 01-07-2012, 05:33 PM   #20
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Re: edelbrock 600cfm or 750cfm

You're gonna get the Holley haters on here to tell you that they have to "constantly be tuned" and run too rich. Which couldn't be any further from the truth. The main "downfall" of a Holley carb is that they might just be too easy to "overtune". The tuneability of the Holley can tend to overwhelm a novice carb tuner. But once they are set correctly... they are just as good (or better) than any "set it and forget it" type of carb.

Personally... ya can't beat 'em. You couldn't GIVE me an Edlebrock/AFB carb. I'd run the ol' Q-jet before I'd use an Edelbrock/AFB carb.

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The Rebuild of Creeping Death after the wreck

Quote:
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I would never rebuild a 305.
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I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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Old 01-07-2012, 05:45 PM   #21
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Re: edelbrock 600cfm or 750cfm

Bottom line is there are great success stories and horrible ones with every carb maker out there. Biggest problem is then guys and gals set out to make it run better. They pick up a screwdriver and oh my.........
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Old 01-07-2012, 07:38 PM   #22
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Re: edelbrock 600cfm or 750cfm

600 with an electric choke
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Old 01-07-2012, 09:33 PM   #23
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Re: edelbrock 600cfm or 750cfm

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600 with an electric choke
BINGO! She is up and running now
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Old 01-08-2012, 06:08 AM   #24
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Re: edelbrock 600cfm or 750cfm

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BINGO! She is up and running now
Good to hear it!
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