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Honest opinion. Holley DP or Carter #686348 05/02/10 09:51 AM 05/02/10 09:51 AM
Joined: Mar 2004 Posts: 3,287 Dalton, MA Slipknot440 OP master
Slipknot440 OP master Joined: Mar 2004 Posts: 3,287 Dalton, MA	Looking for a new carb for my road runner (specs below, m1 intake single 4). I'm never going to competitively drag race it, but I will drive it like i stole it around town, but also have a 2 year old that I don't need to be standing on the side of the road with if it vapor locks or has any other problems. So my question is do I go for more performance with the Holley DP 750, or do I go with the old reliable Carter 750. I currently have an Eddy 800 that I don't like very much on it (good at high rpm, not all that great around town driving)

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686349 05/02/10 10:09 AM 05/02/10 10:09 AM
Joined: Aug 2003 Posts: 998 Sturgis S.D. T tripleblackcuda super stock
tripleblackcuda super stock T Joined: Aug 2003 Posts: 998 Sturgis S.D.	I like Holleys the best, just seem to be easier to work on, plus, usually most parts stores have parts for them on hand.

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686350 05/02/10 10:15 AM 05/02/10 10:15 AM
Joined: Jun 2003 Posts: 7,660 SK. Canada Not_A_Duster master
Not_A_Duster master Joined: Jun 2003 Posts: 7,660 SK. Canada	I prefer holleys, but if it's for a street driven car, I would use a vaccum secondary model like the 3310 or even a street avenger rather than the double pumper. You give up a little straight line performance, but it'll be much better mannered on the street. ....evil is winning....

Re: Honest opinion. Holley DP or Carter [Re: Not_A_Duster] #686351 05/02/10 10:49 AM 05/02/10 10:49 AM
Joined: Jan 2003 Posts: 20,786 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,786 A collage of whims	Hemi RR? Your existing carb may just need some tuning on the needles & springs if you have low vacuum. If you have an AT, a Holley vacuum secondary may need some tuning on the secondary diaphragm to accelerate properly, and a DP (I'd be thinking 850 CFM) will likely need some tuning on the pump shots. Different systems that accomplish the same goal. Changing to a Holley will of course require different fuel plumbing. Need more info on your car to make a better recommendation.

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686352 05/02/10 10:59 AM 05/02/10 10:59 AM
Joined: Jan 2003 Posts: 24,562 Brookeville, Md Mr.Yuck Not enough dumb comments...yet
Mr.Yuck Not enough dumb comments...yet Joined: Jan 2003 Posts: 24,562 Brookeville, Md	If you stay w/ an eddy I wouldn't go down to the 750. Your 800 thunder should be workable. That said a holley is a way better carb w/ more tunability (is that even a word). Anyway a 750HP would be my choice. [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: Honest opinion. Holley DP or Carter [Re: Mr.Yuck] #686353 05/02/10 11:06 AM 05/02/10 11:06 AM
Joined: Dec 2004 Posts: 10,554 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,554 Rittman Ohio	It's very hard to beat the good old Holley 3310 in 780 or 750 CFM. Just run it as is and do some minor jet changes after a good cycle on the plugs.I still think plug reading is the best way to tune your jetting. Gus 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

Re: Honest opinion. Holley DP or Carter [Re: fourgearsavoy] #686354 05/02/10 12:53 PM 05/02/10 12:53 PM
Joined: Mar 2004 Posts: 3,287 Dalton, MA Slipknot440 OP master
Slipknot440 OP master Joined: Mar 2004 Posts: 3,287 Dalton, MA	do I need to change the linkage (auto) or buy an adapter. I've never had a holley on any of my mopars, actually this is my first eddy too.

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686355 05/02/10 01:50 PM 05/02/10 01:50 PM
Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada R RUNCHARGER I Live Here
RUNCHARGER I Live Here R Joined: Jan 2003 Posts: 15,976 Chilliwack B.C. Canada	An 800 AVS should be terrific on that car. You would be better off spending a bit of money having an expert tune it for you rather than buying a new carb that will also need tweaking. If you must though, I would try an 850 double pumper on it (you'll still have to tweak the jets and PV IMO). Sheldon

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686356 05/02/10 04:59 PM 05/02/10 04:59 PM
Joined: Dec 2004 Posts: 10,554 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,554 Rittman Ohio	Quote: do I need to change the linkage (auto) or buy an adapter. I've never had a holley on any of my mopars, actually this is my first eddy too. You can get the lever adapter from Edelbrock and it fits the universal Holley.Mancini or Summit can set you up with the carb and adapter. Gus 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

383man [Re: fourgearsavoy] #686357 05/02/10 05:14 PM 05/02/10 05:14 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I prefer the Holley over the Carter and Eddy carbs in single carb application. But if you have a 500 hp Hemi I would use at least an 850 DP. The 750 will work but that eng will want more carb. Ron

Re: 383man [Re: 383man] #686358 05/02/10 06:40 PM 05/02/10 06:40 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 super gas
joedust451 super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Quote: I prefer the Holley over the Carter and Eddy carbs in single carb application. But if you have a 500 hp Hemi I would use at least an 850 DP. The 750 will work but that eng will want more carb. Ron I agree! 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686359 05/02/10 09:27 PM 05/02/10 09:27 PM
Joined: Feb 2003 Posts: 10,212 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,212 Someplace you aren't	Why not try a tuning kit on the Eddy? Much cheaper than another carb. I want my fair share

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686360 05/02/10 10:09 PM 05/02/10 10:09 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 super gas
joedust451 super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Quote: Looking for a new carb for my road runner (specs below, m1 intake single 4). I'm never going to competitively drag race it, but I will drive it like i stole it around town, but also have a 2 year old that I don't need to be standing on the side of the road with if it vapor locks or has any other problems. So my question is do I go for more performance with the Holley DP 750, or do I go with the old reliable Carter 750. I currently have an Eddy 800 that I don't like very much on it (good at high rpm, not all that great around town driving) What exactly is the eddy doing that you don't like? 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: Honest opinion. Holley DP or Carter [Re: joedust451] #686361 05/02/10 11:37 PM 05/02/10 11:37 PM
Joined: Jul 2009 Posts: 237 Redding,CA USA 440charger500 enthusiast
440charger500 enthusiast Joined: Jul 2009 Posts: 237 Redding,CA USA	A hemi with only one carb just doesnt look right. I think it needs two.

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686362 05/02/10 11:39 PM 05/02/10 11:39 PM
Joined: Jan 2005 Posts: 12,419 Kalispell Mt. H HotRodDave I Live Here
HotRodDave I Live Here H Joined: Jan 2005 Posts: 12,419 Kalispell Mt.	If anything the 800 eddy may be too small I am not causing global warming, I am just trying to hold off a impending Ice Age!

Re: Honest opinion. Holley DP or Carter [Re: 440charger500] #686363 05/02/10 11:44 PM 05/02/10 11:44 PM
Joined: Jan 2003 Posts: 9,117 Tucson, AZ Ramrod39 My New Title
Ramrod39 My New Title Joined: Jan 2003 Posts: 9,117 Tucson, AZ	I've run a bunch of Holley double pumpers and I liked every one of them. Had one Edelbrock 750 and didn't think much of it. I'd go 850DP with that motor.

Re: Honest opinion. Holley DP or Carter [Re: Ramrod39] #686364 05/02/10 11:53 PM 05/02/10 11:53 PM
Joined: Dec 2005 Posts: 115 federal way, WA 7 74chargr member
74chargr member 7 Joined: Dec 2005 Posts: 115 federal way, WA	Carter=economy/reliability Holley=Better straight line performance. You never blow out a power valve on a carter. I have one on my 360 and it really sucks. But of course it is pretty beat so I can't really compare that to a new one. There is better fuel mixture on a carter because of the venturi design. 74 Charger SE 87 Shelby Lancer 80 1 ton bread box 71 Duster rest in pieces

Re: Honest opinion. Holley DP or Carter [Re: 74chargr] #686365 05/03/10 10:18 AM 05/03/10 10:18 AM
Joined: Mar 2004 Posts: 3,287 Dalton, MA Slipknot440 OP master
Slipknot440 OP master Joined: Mar 2004 Posts: 3,287 Dalton, MA	When my engine was dynoed with a 750 DP it made 504 hp with good power and tq through the run, an 850 DP made more power but less consistently, the Eddy made 498 hp but got a little to rich in the top end. Since the eddy has been in the car it doesn't seem to run at low speeds and idle as well as it should, but is great from 2500-5400 rpm. The engine builder was using his carbs for break-in and my carb for final tuning. He suggested the 750, as it is pretty much a stock 426 (as far as bore and stroke) and suggested that the 800 is a little big and the 850 would be too much. With his credentials I would believe anything he says.

Re: Honest opinion. Holley DP or Carter [Re: Slipknot440] #686366 05/03/10 10:46 AM 05/03/10 10:46 AM
Joined: Apr 2010 Posts: 1,216 Under My Car Mopar_Country pro stock
Mopar_Country pro stock Joined: Apr 2010 Posts: 1,216 Under My Car	I'm curious about that. When the hemi's and max wedge engines were produced they had two 600 cfm carter afb carbs on them. I guess I would have to ask if they can handle 1200 total then why would an 850 be too big? I'm not a carb expert so there may be something I'm overlooking. Nice looking ride by the way.

Re: Honest opinion. Holley DP or Carter [Re: Mopar_Country] #686367 05/03/10 10:55 AM 05/03/10 10:55 AM
Joined: Nov 2005 Posts: 1,943 San Angelo, Texas, U.S.A. 1968RR top fuel
1968RR top fuel Joined: Nov 2005 Posts: 1,943 San Angelo, Texas, U.S.A.	I'd go with a Holley. The double pumpers can be a bit much for regular street use, but that hasn't stopped me from using one. My 440 makes about the same power that you're making and I have an 850 cfm double pumper. If you take this route you may have to jet the carb down a bit from the stock 80/80 jetting. Good luck. "When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson

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