AVS, 4027 vs 4028 - Chevy Nova Forum
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Old 28th-November-2012, 08:26 PM   #1
BLASTER
 
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AVS, 4027 vs 4028

Looking to get rid of the pinche 4CG on my 283/glide. I have always had a thing for the AVS over the AFB and am on the hunt for a 500CFM version. They float around ebay pretty good.

The 4028S is for a 66 Chevelle 327/275 with Powerglide and no A.I.R. Manual transmission takes the 4027S.
What actually changes between a 4027 and a 4028. Linkage appears to be the same.

Any Carter gurus in the house?
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Old 30th-November-2012, 01:53 PM   #2
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Nope? Any 1403/1404 Edelbrocks in the house?
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Old 1st-December-2012, 11:55 AM   #3
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my guess is the kick down stud may not be on the manual tranny carb but you can buy them i would get what ever one you want you can buy the studs for the kick down at any auto parts stores and happy hunting
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Old 1st-December-2012, 01:06 PM   #4
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Linkage appears to be the same.
Turns out the 4027 and 28 are 625cfm.
On the hunt for a 1403 Edelbrock or 9511 Carter right now. (500cfm AFBs)

Thanks for the input, though.
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Old 3rd-December-2012, 06:59 PM   #5
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Get a "Real" Carter carb for it, trust me.

I worked for Carter for 25 years, fact is I sold a New-in-the-box #9511 500 CFM carb about 4 years ago on Ebay.

But, ......... get yourself an 'Original' '60's Carter carburetor, they are correctly calibrated, not a universal calibration that comes with all of the aftermarket units that were sold by Carter and now Edelbrock.
I'll stop now, because I don't want to write a book on the subject, but just pick up the phone and call John at the Carb Shop in Eldon Missouri.

Call John and he will set you up: http://www.thecarburetorshop.com/
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Old 4th-December-2012, 12:06 AM   #6
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Thanks Glenn! Actually been on the hunt for a real Carter in a 9400 series for my little 283.
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