My 440 is AWAKE!
#1320334
10/14/12 06:53 PM
10/14/12 06:53 PM
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Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
bobs66440
OP
top fuel
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OP
top fuel
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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Wow! I'm running a dual (600cfm) quad setup on my rebuilt 440. I've always run the carbs with the progressive linkage because I always thought that having them both come in at the same time would be way too much. I would have the secondary carb come in after about 1/2 throttle of the primary and they would both get full throttle at the same time. But it always seemed a little sluggish off the bottom end. Not terrible, but not what I would have hoped for. So after reading another thread regarding this, I decided on our cruise today to try it 1:1...both carbs opening at the same time. HOLY CRAP! What a difference! Totally different animal now! Woke that baby RIGHT up! VERY much fun to play with on the street  Super responsive off the bottom through mid range. She'll FRY the tires now!  Top end is the same, but that's expected. The bad news is that I can actually watch the gas gauge go to "E" at a rate I've never seen  Still, it sure is FUN now!   Glad I read that thread!!  Thanks guys!
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Re: My 440 is AWAKE!
[Re: bobs66440]
#1320335
10/14/12 07:01 PM
10/14/12 07:01 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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You sound pumped! I have a pair of 4131S AFB's which are smaller than 600 CFM going on a dual quad 451 & was wondering if I should go progressive or not as this is my 1st dual quad setup so after your experience I will make em 1:1 & go from there. EDIT it's an iron single plane OE B intake
Last edited by RapidRobert; 10/14/12 07:05 PM.
live every 24 hour block of time like it's your last day on earth
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Re: My 440 is AWAKE!
[Re: CrAzYMoPaRGuY]
#1320340
10/15/12 07:28 AM
10/15/12 07:28 AM
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Joined: Jul 2003
Posts: 4,779
Holland MI Ottawa
2boltmain
master
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master
Joined: Jul 2003
Posts: 4,779
Holland MI Ottawa
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Awwwww very neat- you are running an old Offenhauser. Dont see them anymore. I have an Offy 2x4 for 273/318 purchased brand new from Summit in 2003 that is destined for my 360. Nice!
Keep old mopars alive.
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Re: My 440 is AWAKE!
[Re: CrAzYMoPaRGuY]
#1320341
10/15/12 09:04 AM
10/15/12 09:04 AM
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Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
bobs66440
OP
top fuel
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OP
top fuel
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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Quote:
GORGEOUS car, inside and out.
It's great to see you tweaking it in a way that makes a difference!
Thanks. Yes, it's not often I get the chance to do very little work for a huge result. Usually I work all day to go one step backward 
Quote:
Awwwww very neat- you are running an old Offenhauser. Don't see them anymore. I have an Offy 2x4 for 273/318 purchased brand new from Summit in 2003 that is destined for my 360. Nice!
Thanks. Yes, that's an Offy. I was thinking about switching it out for an Edelbrock CH28. I've heard they work a little better. It's not in the budget right now though.
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Re: My 440 is AWAKE!
[Re: RapidRobert]
#1320342
10/15/12 09:14 AM
10/15/12 09:14 AM
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Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
bobs66440
OP
top fuel
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OP
top fuel
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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Quote:
You sound pumped! I have a pair of 4131S AFB's which are smaller than 600 CFM going on a dual quad 451 & was wondering if I should go progressive or not as this is my 1st dual quad setup so after your experience I will make em 1:1 & go from there. EDIT it's an iron single plane OE B intake
Yes, I would do that. The funny thing is, when I bought the car (stock tired engine) he had it set up like that and it was a dog. WAY too much carburetor. SO I set it up progressive and it was much better. Then, when I rebuilt and modified the engine with better cam, .030 over, Stealth heads, headers, etc. I just kept it that way not thinking there would be much difference. And truthfully, there wasn't. I was expecting a really potent engine but I was disappointed because it felt only slightly better than the old one. But, wow. I guess all that stuff made a difference because it sure like the cfms now!
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Re: My 440 is AWAKE!
[Re: bobs66440]
#1320343
10/16/12 07:30 AM
10/16/12 07:30 AM
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Joined: Jul 2003
Posts: 4,779
Holland MI Ottawa
2boltmain
master
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master
Joined: Jul 2003
Posts: 4,779
Holland MI Ottawa
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Back in 1999 I spoke to a tech at an Edelbrock booth at a Lane Automotive car show. At the time I had a 440, 509 cam, 3000 stall with the CH28 and 2 500cfm carbs. I asked him about progressive and 1 to 1 and he told me my engine with its mods to definately go 1 to 1 and that running 2 500s was fine. (Their power package recommends 2 600s) It would be very interesting to see how the old Offy compares to the CH28 Edelbrock.
Keep old mopars alive.
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