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750 or 800cfm ? #611711 02/12/10 07:18 PM 02/12/10 07:18 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	Wich one to use with a 408 stroker ? To me the 750 Eddy souds fine, some say a 800 cfm is a must..... Any comments ? Dan

Re: 750 or 800cfm ? [Re: Wedgeman] #611712 02/12/10 07:44 PM 02/12/10 07:44 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	the 750 eddy has alot of complaints. I have an 800 Thunder series AVS. very sweet carb. easy to tweak and tune. Only trouble i've had is it comes off fast idle to soon. Gonna play with it this weekend.

Re: 750 or 800cfm ? [Re: Wedgeman] #611713 02/12/10 08:49 PM 02/12/10 08:49 PM
Joined: Oct 2003 Posts: 7,506 Az Crizila master
Crizila master Joined: Oct 2003 Posts: 7,506 Az	If you got some good breathing heads on it ( 270 or better cfm on the intake side ), the 750 might be a little small. I'd go with an 800 or 850. Fastest 300

Re: 750 or 800cfm ? [Re: Wedgeman] #611714 02/12/10 09:29 PM 02/12/10 09:29 PM
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	Do you have to have an Eddy carb? if o the 800...I'd go for a 750DP [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: 750 or 800cfm ? [Re: Mr.Yuck] #611715 02/12/10 09:34 PM 02/12/10 09:34 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	HOLLEYS GIVE ME PIMPLES...

Re: 750 or 800cfm ? [Re: Wedgeman] #611716 02/12/10 09:37 PM 02/12/10 09:37 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	Holley's give me migrains

Re: 750 or 800cfm ? [Re: Wedgeman] #611717 02/12/10 09:42 PM 02/12/10 09:42 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	either CFM would work for you. If you get a good deal on either size of any model of any brand I wouldn't hesitate. As said alot of complaints on the 750 eddy. live every 24 hour block of time like it's your last day on earth

Re: 750 or 800cfm ? [Re: Dougsmopars] #611718 02/12/10 09:43 PM 02/12/10 09:43 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	Any other diseases from Holleys ? loll

Re: 750 or 800cfm ? [Re: Wedgeman] #611719 02/12/10 09:46 PM 02/12/10 09:46 PM
Joined: Jan 2003 Posts: 20,543 Eagle, Idaho Neil The Doctor is in.
Neil The Doctor is in. Joined: Jan 2003 Posts: 20,543 Eagle, Idaho	I know someone who has an old 750 carter afb on a 408 and it runs nice. I have ridden around in it and it doesn't cough, hesitate, or do anything irritating. It also runs hard enough to pop the glovebox door open and curl the floormats backwards when you stand on it. I think either would work, but if your engine is fairly built then the bigger 800 version is the way to go. Last edited by Neil; 02/12/10 09:47 PM.

Re: 750 or 800cfm ? [Re: Neil] #611720 02/12/10 11:44 PM 02/12/10 11:44 PM
Joined: Feb 2003 Posts: 21,318 Manitoba, Canada DaytonaTurbo Too Many Posts
DaytonaTurbo Too Many Posts Joined: Feb 2003 Posts: 21,318 Manitoba, Canada	I would go with an 800. A 750 eddy would not be at the top of my list.

Re: 750 or 800cfm ? [Re: DaytonaTurbo] #611721 02/12/10 11:47 PM 02/12/10 11:47 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	What is the CFM of the stock carter that came on 440 B Bodies, GTX, R/T Charger????????

Re: 750 or 800cfm ? [Re: Wedgeman] #611722 02/12/10 11:52 PM 02/12/10 11:52 PM
Joined: Oct 2003 Posts: 2,309 South, FL cudaized top fuel
cudaized top fuel Joined: Oct 2003 Posts: 2,309 South, FL	800 CFM The 750 still leaves a bit of vacuum at wide open throttle as compared to the 800. Your stroker will appreciate the bigger carb at wide open throttle, provided that your heads flow 250 cfm or better.

Re: 750 or 800cfm ? [Re: Dougsmopars] #611723 02/12/10 11:54 PM 02/12/10 11:54 PM
Joined: Jan 2003 Posts: 3,329 Melbourne, FL dwbiggs super gas
dwbiggs super gas Joined: Jan 2003 Posts: 3,329 Melbourne, FL	Run quickly away from Eddys...if you are serious about getting the best performance get a Holley.

Re: 750 or 800cfm ? [Re: dwbiggs] #611724 02/13/10 12:01 AM 02/13/10 12:01 AM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	There are guys here who swear by holley, by Damon, by Barry Grant , by Eddy, by Carter and they all say to get the best performence use there brand. They all run good when properly tuned. We can have the same agument about tires, gas, oil the color of the sky. Either CFM will work well if tuned correctly. Buy what ever brand your more familiar with to make tuning it easier for you.

Re: 750 or 800cfm ? [Re: Dougsmopars] #611725 02/13/10 12:10 AM 02/13/10 12:10 AM
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 myself like Holley DP's as I have very good results with them and I find them easy to tune. I have a 750 DP on my sons 400 Dart. He has tried an 800 and 850 and went no faster so he ended up going back to the 750 which has run 11.40's in his mild 400 Dart. If you like the Eddy carbs I would agree the 800 Thunder series seem to be better from what I hear. Both the Holley and Eddy carbs can work good as it just boils down to which you care for and have good results with. Ron

Re: 750 or 800cfm ? [Re: Wedgeman] #611726 02/13/10 10:53 AM 02/13/10 10:53 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	Quote: HOLLEYS GIVE ME PIMPLES... too bad I punted the Carter Comp series 625 on my mild 340 swinger for a 750DP and went from 14.teens to 13.80. A holley is a much better carb and for what you have I think you'd be much hapier w/ a holley. Any car is going to need tuning. Holley have much more to play with so I guess that's why some people don't like them. [IMG]http://i66.tinypic.com/pui5j.jpg[/IMG] Coming soon!!!!

Re: 750 or 800cfm ? [Re: Dougsmopars] #611727 02/13/10 10:55 AM 02/13/10 10:55 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	Quote: What is the CFM of the stock carter that came on 440 B Bodies, GTX, R/T Charger???????? What year? 4 speed or auto? some 440 B's had 3 holleys What came on the car was not always the best performing carb for the application, only what was cheap at the time.

Re: 750 or 800cfm ? [Re: Wedgeman] #611728 02/13/10 11:12 AM 02/13/10 11:12 AM
Joined: Mar 2005 Posts: 3,445 N.Wilkesboro,NC D DusterKrazy master
DusterKrazy master D Joined: Mar 2005 Posts: 3,445 N.Wilkesboro,NC	If you want power go with Holley, If you want drive it all the time streetability, go with an Edelbrock. I have the Eddy 750 and it's a dog The 800 Eddy did run good on my buddies 408 small block but it seemed small..then he tunnel rammed it. It runs like a bat outta he// now

Re: 750 or 800cfm ? [Re: Dougsmopars] #611729 02/13/10 12:41 PM 02/13/10 12:41 PM
Joined: Nov 2006 Posts: 319 Northern Va M Mopar73340 enthusiast
Mopar73340 enthusiast M Joined: Nov 2006 Posts: 319 Northern Va	Quote: There are guys here who swear by holley, by Damon, by Barry Grant , by Eddy, by Carter and they all say to get the best performence use there brand. They all run good when properly tuned. We can have the same agument about tires, gas, oil the color of the sky. Either CFM will work well if tuned correctly. Buy what ever brand your more familiar with to make tuning it easier for you. I'm running an 800 AVS on my 408 it runs great...

Re: 750 or 800cfm ? [Re: Mopar73340] #611730 02/13/10 12:59 PM 02/13/10 12:59 PM
Joined: Mar 2007 Posts: 181 Stow,Ohio RBSat66 member
RBSat66 member Joined: Mar 2007 Posts: 181 Stow,Ohio	Just a thought, but which carb is taller and will it have room under your hood. I have a holley DP on my 66 and I seem to remember I couldn't fit the Eddy on my intake because it was to close to the hood with the air cleaner on.

Re: 750 or 800cfm ? [Re: Dougsmopars] #611731 02/13/10 02:05 PM 02/13/10 02:05 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	Quote: There are guys here who swear by holley, by Damon, by Barry Grant , by Eddy, by Carter and they all say to get the best performence use there brand. They all run good when properly tuned. We can have the same agument about tires, gas, oil the color of the sky. Either CFM will work well if tuned correctly. Buy what ever brand your more familiar with to make tuning it easier for you. That's a well put tought...... I was thinking a Street Dominator under that, I'v heard only good about this intake ....have you ? Thanks you guys for all your comments Dan Last edited by Wedgeman; 02/13/10 02:07 PM.

Re: 750 or 800cfm ? [Re: Wedgeman] #611732 02/13/10 08:19 PM 02/13/10 08:19 PM
Joined: Mar 2007 Posts: 181 Stow,Ohio RBSat66 member
RBSat66 member Joined: Mar 2007 Posts: 181 Stow,Ohio	I'm don't know how high the dominator manifold is,but I'm running a Edelbrock RPM and I am very happy with that intake and a 950 holleyDP carb setup.

Re: 750 or 800cfm ? [Re: RBSat66] #611733 02/13/10 09:00 PM 02/13/10 09:00 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	With a 408 stroker, I've been suggested a single plane..... Dan

Re: 750 or 800cfm ? [Re: Wedgeman] #611734 02/13/10 09:43 PM 02/13/10 09:43 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: I was thinking a Street Dominator under that, I'v heard only good about this intake ....have you ? The BB sd intake is a tried & true performer enough so that they reintroduced it, the RB one anyhow. I have a SB one going on a 408. It has a very low profile, single plane and it has smaller 318/magnum sized ports. I see them somewhat regularly for $60-75. Might not be the "perfect" intake but it wont be far from it and you sure cant beat the price. Oh also its a spread bore if you are going w a Demonsizzler prepped thermoquad . Last edited by RapidRobert; 02/13/10 09:45 PM. live every 24 hour block of time like it's your last day on earth

Re: 750 or 800cfm ? [Re: RapidRobert] #611735 02/14/10 01:17 PM 02/14/10 01:17 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	Well I found one for 50$ in the Moparts ads...then I remembered I have a thermoquad layin in a box I could use....... BUt Demonsizzeler ?? You'll have to school me on this..... Dan

Re: 750 or 800cfm ? [Re: Wedgeman] #611736 02/14/10 01:40 PM 02/14/10 01:40 PM
Joined: Jan 2003 Posts: 5,270 Missouri M MY340 master
MY340 master M Joined: Jan 2003 Posts: 5,270 Missouri	Either one should work fine. I've got the only good working 750cfm Edelbrock AFB on Moparts. No problems with mine and the Duster runs very well with it. 1970 FE5 Duster 360/904/3.91's SOLD 1973 TB3 SpaceDuster 340/4spd/4.10's SOLD Moparless for now but when the opportunity is right I'll have another one.

Re: 750 or 800cfm ? [Re: MY340] #611737 02/14/10 01:44 PM 02/14/10 01:44 PM
Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada W Wedgeman OP pro stock
Wedgeman OP pro stock W Joined: May 2004 Posts: 1,522 Ste-Sophie, Quebec, Canada	I had a 750 Eddy over my 340 Duster , and ran without problems, was a great carb I think, or they seem to love Dusters... Dan

Re: 750 or 800cfm ? [Re: Wedgeman] #611738 02/14/10 01:58 PM 02/14/10 01:58 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Quote: then I remembered I have a thermoquad layin in a box I could use. BUt Demonsizzeler ?? You'll have to school me on this.Dan "Demonsizzler" is his handle & he is a member here on Moparts out of Atlanta and he is our thermoquad guru.He is busy & can be hard to get ahold of but it's worth the wait. Thermoquads imo have the finest metering system of any oe carb (along w the gm quadrajet )plus the small primaries/large secondaries combo is awesome but the carb CAN be troublesome to setup but is fine once it is setup properly & Demonsizzler can easily solve that issue w his extensive expertise. live every 24 hour block of time like it's your last day on earth

Re: 750 or 800cfm ? [Re: Wedgeman] #611739 02/14/10 01:59 PM 02/14/10 01:59 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	I've had good luck with Eddy carbs but find the 800 i have now is being a bear to get the right fuel mix through out the RPM range. I'm thinking of bitting my tounge and going with an 800 DP. But i will get a new one not one somebody has been messing with. If i do go with the holley any jet recomendations? 68 HP440 i asume is stock comp as i haven't pulled the heads. Heads apear to be stock as i see no obvious porting. Voodoo 604 cam. 727 w/2800to 3200 stall 3;55 gears B Body Eddy perfomer intake. MP electronic ignition with chrome box. Manifolds with 2.5 pipes hemi style mufflers Last edited by Dougsmopars; 02/14/10 02:01 PM.

Re: 750 or 800cfm ? [Re: Dougsmopars] #611740 02/14/10 03:58 PM 02/14/10 03:58 PM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	Do a search on this site & see how many Eddy problems you find guys struggling with, vs. how many holley problems guys struggle with. Now balance that against how many more guys are using holleys! I'm sure an expert can make either work fine, but I know I went through two Eddy 750's and never got either of them to satisfy me. I then bought an old Holley 3310 750 VS off ebay and immediately my 383 ran its best. Nascar guys use holley based carbs, Prostock guys use holley based carbs, Walk through the staging lanes at any drag strip & count Holleys vs. Eddys. Its no accident. I think the Holley design just measures and reacts to a vacuum signal better than the old carter design, which really comes into play when you throw long duration camshafts, extended initial timing, headers and such into the mix. My choice for a street 408 would be a holley 770 avenger series, but a 3310 750 would work very well also. LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: 750 or 800cfm ? [Re: Wedgeman] #611741 02/14/10 04:01 PM 02/14/10 04:01 PM
Joined: Jan 2003 Posts: 6,816 Alton, IL D Dakota_Don master
Dakota_Don master D Joined: Jan 2003 Posts: 6,816 Alton, IL	Quote: Any other diseases from Holleys ? loll i get to poo poos just hearing the word

Re: 750 or 800cfm ? [Re: StealthWedge67] #611742 02/14/10 04:07 PM 02/14/10 04:07 PM
Joined: Nov 2007 Posts: 21,822 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,822 Kirkland, Washington	The Holley 750VS is about as trouble-free as a carb can get. Out of the box. I don't recall of the OP said if the car was auto or 4-speed though.

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