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Recommend me a carb #2273769
03/21/17 04:50 PM
03/21/17 04:50 PM
Joined: Jan 2005
Posts: 4,421
Michigan
MarkZ Offline OP
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MarkZ  Offline OP
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Michigan
New motor is almost done and now it's time to go carb shopping. I'm trying to stay on the cheap side though because I have plans to inject the motor with next year's budget. I would even entertain something used if someone has something that would be a decent fit just laying around. As the projects stands now:

  • 512 low deck stroker
  • 10:1 compression
  • OOTB Eddie heads
  • Single plane, Eddie torqer 383
  • Comp XR280HR
  • Shorty headers
  • 2.5" exhaust
  • 3800#


Thanks guys. The information and advice I've gotten off of this forum has been invaluable through the years.

Last edited by MarkM; 03/21/17 04:51 PM.

1987 Fifth Avenue - 512/518/D60
Re: Recommend me a carb [Re: MarkZ] #2273773
03/21/17 05:01 PM
03/21/17 05:01 PM
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Oregon
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AndyF Offline
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Oregon
I'd put a 800 cfm Edelbrock carb on there. They are fairly inexpensive and they work really well on the street. They have a good idle circuit and they can be made to flow enough fuel for a 500 inch engine.

You'll need a wideband in the exhaust to get the tune dead on or schedule a trip to a chassis dyno.

Re: Recommend me a carb [Re: MarkZ] #2273826
03/21/17 06:15 PM
03/21/17 06:15 PM
Joined: Jul 2011
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Chicago
PurpleBeeper Offline
super stock
PurpleBeeper  Offline
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Chicago
750 vac. secondary Holley for an automatic and/or street car. 750/800/850 double pumper for 4spd/track-only car (you'll hate the mileage of a double pumper).


70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"
Re: Recommend me a carb [Re: MarkZ] #2273944
03/21/17 09:55 PM
03/21/17 09:55 PM
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WV
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JohnH Offline
mopar
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WV
EB

Re: Recommend me a carb [Re: MarkZ] #2273950
03/21/17 10:05 PM
03/21/17 10:05 PM
Joined: Mar 2010
Posts: 1,308
Spencer NY
killermopar Offline
pro stock
killermopar  Offline
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Spencer NY
Edelbrock 800. Simple.

Re: Recommend me a carb [Re: MarkZ] #2273958
03/21/17 10:22 PM
03/21/17 10:22 PM
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bboogieart Offline
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Quote;
"I'm trying to stay on the cheap side though because I have plans to inject the motor with next year's budget."

How about rebuilding a good used carb?
You have a P.M.
Hint hint. grin


I have mechanical Aptitude.
I can screw up anything.
Re: Recommend me a carb [Re: bboogieart] #2273965
03/21/17 10:37 PM
03/21/17 10:37 PM
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IN
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ahy Offline
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Full disclosure, I've never run one. That said, how about the Summit 750? Similar to Holly, decent flow, well rated and reasonable cost. I would probably try one in your situation.

https://www.summitracing.com/parts/sum-m08750vs/overview/

Re: Recommend me a carb [Re: ahy] #2273981
03/21/17 11:10 PM
03/21/17 11:10 PM
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bboogieart Offline
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Originally Posted By ahy
Full disclosure, I've never run one. That said, how about the Summit 750? Similar to Holly, decent flow, well rated and reasonable cost. I would probably try one in your situation.

https://www.summitracing.com/parts/sum-m08750vs/overview/


The only thing I see wrong with that carb is it's a square bore.
Course that's a personal opinion.


I have mechanical Aptitude.
I can screw up anything.
Re: Recommend me a carb [Re: MarkZ] #2273992
03/21/17 11:18 PM
03/21/17 11:18 PM
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Omaha Ne
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TJP Offline
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Omaha Ne
New motor ? new Carb IMO,
Wanting to stay cheap due to planned EFI, understand until one washes the cylinders down etc. whistling
I say go new, and lean towards a holley but EB will do, depending on your fuel pump / system. Watch you fuel pressure with the EB, they can also be prone to Puddling in hot temps. twocents

Re: Recommend me a carb [Re: MarkZ] #2273993
03/21/17 11:19 PM
03/21/17 11:19 PM
Joined: Feb 2005
Posts: 4,314
Prospect, PA
BSB67 Offline
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Used Holley 4781. You will not be leaving much on the table, and you can pick them up pretty cheap.

Re: Recommend me a carb [Re: MarkZ] #2273998
03/21/17 11:24 PM
03/21/17 11:24 PM
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Oregon
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AndyF Offline
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Oregon
I do have a TQ that Demon Sizzler rebuilt for me a while back. Never used after the rebuild. Been sitting on my shelf. I figure I could use a $50 bill more than this TQ!

Re: Recommend me a carb [Re: MarkZ] #2274002
03/21/17 11:29 PM
03/21/17 11:29 PM
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Australia
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ozymaxwedge Offline
super stock
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Australia
512 cube, I would have thought a 750 carb is to small ?


1963 Plymouth Max Wedge
1971 Barracuda
Re: Recommend me a carb [Re: MarkZ] #2274115
03/22/17 08:43 AM
03/22/17 08:43 AM
Joined: Apr 2005
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Michigan
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crlush Offline
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Michigan
850 holley dp, you can allways sell it when your done with it without taking a huge loss.

Re: Recommend me a carb [Re: MarkZ] #2274171
03/22/17 12:09 PM
03/22/17 12:09 PM
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Earth
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Rob C Offline
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The TQ is a great street strip carb. I like them a lot.
If it is not for you, then a simple carb that will work and work well is IMO a Edelbrock 800cfm Thunder series carb for there adjustable secondary air door.
Just use an Edelbrock thick base gasket to help against the heat of the intake.

Re: Recommend me a carb [Re: MarkZ] #2274188
03/22/17 12:38 PM
03/22/17 12:38 PM
Joined: Feb 2003
Posts: 18,582
Rust Belt, SW PA
Silver70 Offline
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Silver70  Offline
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Rust Belt, SW PA
I like the edelbrock 800 suggestion also... I like my holleys, but have had better luck with edelbrock for street engines.


68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram
Re: Recommend me a carb [Re: MarkZ] #2274293
03/22/17 03:59 PM
03/22/17 03:59 PM
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR Offline
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I'll suggest one NOT to use ... Ebrock PERFORMER 750 ... POS ...


running up my post count some more .
Re: Recommend me a carb [Re: MarkZ] #2274486
03/22/17 10:01 PM
03/22/17 10:01 PM
Joined: Mar 2005
Posts: 660
F
fury4speed Offline
mopar
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I had a Edelbrock performer 800 CFM carburetor on my 426 Wedge , direct connection heads , Mopar purple cam , Edelbrock torqer with an open plenum and the carb did not work very good , a lot of times when I came to a stop the engine stalled , I put a Holley 800 DP and worked fine , no stalling , I heard with a open plenum the Edelbrock carb does not work good at least that was my problem.

Re: Recommend me a carb [Re: MarkZ] #2274495
03/22/17 10:07 PM
03/22/17 10:07 PM
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Earth
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Rob C Offline
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Sounds like a pump issue & float issue. Also NOT a fan of Street bound Purple cams. What size was it?







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