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Dual four barral carburator calabration..HELP! #355593
06/23/09 12:03 PM
06/23/09 12:03 PM
Joined: Aug 2003
Posts: 2,506
Northern Pa
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GLR Offline OP
master
GLR  Offline OP
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Joined: Aug 2003
Posts: 2,506
Northern Pa
I have a 452 (400-with 440 crank) stroker engine with mopar stage 6 heads-(stock) and a comp cam -270 duration with 470 lift with headers and it has two Edelbrock 650 CFM thunderseries carbs on it.
I want to know waht I should use for primary and secondary jetting and also what metering rods and the step up springs should I use?????

The carbs are stock calabration;

Primary Jets-.095

Secondary Jets .098

Metering rods .068 x .047

with orange step up springs

You can post here or send me an e-mail to; glr7069@ptd.net

Re: Dual four barral carburator calabration..HELP! [Re: GLR] #355594
06/23/09 04:46 PM
06/23/09 04:46 PM
Joined: Aug 2003
Posts: 2,506
Northern Pa
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GLR Offline OP
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GLR  Offline OP
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Northern Pa
Hemi guys? racers? anyone know?????

Re: Dual four barral carburator calabration..HELP! [Re: GLR] #355595
06/23/09 04:49 PM
06/23/09 04:49 PM
Joined: Jan 2003
Posts: 32,928
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

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Posts: 32,928
Grand Prairie,Texas
You might do better asking in the Unlawful race only area. Those guys don't always get here.

Re: Dual four barral carburator calabration..HELP! [Re: stumpy] #355596
06/23/09 05:26 PM
06/23/09 05:26 PM
Joined: Aug 2003
Posts: 2,506
Northern Pa
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GLR Offline OP
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GLR  Offline OP
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Northern Pa
Thanks!..
I put a post in there,
But I find it hard to beleave that no one has dual four barrels on there steet car.

Re: Dual four barral carburator calabration..HELP! [Re: GLR] #355597
06/23/09 07:53 PM
06/23/09 07:53 PM
Joined: Jan 2003
Posts: 541
chatham, Ilinois
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fox Offline
super street
fox  Offline
super street
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Joined: Jan 2003
Posts: 541
chatham, Ilinois
My advice it put it together and go drive it. It could be close.

Re: Dual four barral carburator calabration..HELP! [Re: fox] #355598
06/23/09 10:38 PM
06/23/09 10:38 PM
Joined: Aug 2003
Posts: 2,506
Northern Pa
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GLR Offline OP
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Northern Pa
Well, I would rather find out what the calabration should be and that way I won't damage anything

Re: Dual four barral carburator calabration..HELP! [Re: GLR] #355599
06/24/09 08:07 AM
06/24/09 08:07 AM
Joined: Jan 2003
Posts: 1,788
Greer, SC
TooMany62s Offline
top fuel
TooMany62s  Offline
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Posts: 1,788
Greer, SC
For my 440 I went to one of the old mopar performance guides and used the jets suggested for the 2X4 super stock cars. I'm on the road so I don't have the numbers with me but if you PM me I'll look them up and send them to you when I get home this weekend.

Re: Dual four barral carburator calabration..HELP! [Re: GLR] #355600
06/24/09 08:17 AM
06/24/09 08:17 AM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
I'd probably put them on as is and go from there. They will need adjusting no matter what you do. It also has a lot to do w/ the rest of your set-up, compression, stall gear, headers??? and so on.


[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: Dual four barral carburator calabration..HELP! [Re: GLR] #355601
06/24/09 08:25 AM
06/24/09 08:25 AM
Joined: Oct 2004
Posts: 16,478
Canada
CrAzYMoPaRGuY Offline
I Live Here
CrAzYMoPaRGuY  Offline
I Live Here

Joined: Oct 2004
Posts: 16,478
Canada
Quote:

Thanks!..
I put a post in there,
But I find it hard to beleave that no one has dual four barrels on there steet car.




I do, but mine isn't fired yet.
I have a 446ci with the same cam- 270H, but I have two Edelbrock 500s on a CH28...

I'm gonna get mine running and go from there, but my metering rod sizes won't matter to you cause my carbs are different....




CrAzYMoPaRGuY
Re: Dual four barral carburator calabration..HELP! [Re: GLR] #355602
06/24/09 08:27 AM
06/24/09 08:27 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Quote:

I won't damage anything


If it's not pinging nor overheating no damage is being done just that your performance/mileage might not be optimum and you'd rather be slightly rich than too lean & I would inquire if those particular carbs are jetted stock on the rich side or the lean side. check your plugs until you can afford an innovate LM-2(with the rpm converter) to exactly find out(& get perfect) your air/fuel mixture


live every 24 hour block of time like it's your last day on earth
Re: Dual four barral carburator calabration..HELP! [Re: RapidRobert] #355603
06/24/09 08:40 AM
06/24/09 08:40 AM
Joined: Jul 2004
Posts: 3,805
Arlington, Texas
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bobby66 Offline
master
bobby66  Offline
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Joined: Jul 2004
Posts: 3,805
Arlington, Texas
Dan Dvorack sells a device for balancing two-four barrel set ups. I've never seen one in person.







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