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What size Carb??? #574036 01/05/10 07:02 PM 01/05/10 07:02 PM
Joined: Nov 2009 Posts: 18 Wisconsin K khodne OP member
khodne OP member K Joined: Nov 2009 Posts: 18 Wisconsin	I'm wondering what size carburetor to use on a 495 CI stroker? I used the 440 Source kit. Stealth heads, I had the 10 degree locks installed. A Comp Cam xtreme energy high lift .545 cam with duration at .050" of 241 on the intake and 247 on the exhaust. Indy dual plane intake. I'm planing on using TTI exhaust but unsure whether to use the 1 7/8" or 2". Suggestions on the Carburetor; type and size, and the header size will be greatly appreciated. 5713916-Picture62.jpg (134 downloads)

Re: What size Carb??? [Re: khodne] #574037 01/05/10 07:12 PM 01/05/10 07:12 PM
Joined: Mar 2003 Posts: 600 Spartanburg SC MoparDan mopar
MoparDan mopar Joined: Mar 2003 Posts: 600 Spartanburg SC	850DP or maybe something like a quick fuel 950. I have a quick fuel carb and am very pleased with it

Re: What size Carb??? [Re: MoparDan] #574038 01/05/10 07:45 PM 01/05/10 07:45 PM
Joined: Nov 2009 Posts: 18 Wisconsin K khodne OP member
khodne OP member K Joined: Nov 2009 Posts: 18 Wisconsin	I have 10 to 1 compression, Four speed, and a Dana with 3.54 gears. I was planing on 295 50 15's for driving and I have 275 60 15 BFG Drag radial's to mess around with. Using the Summit equation I came up with 870 CFM. 5713989-Picture64.jpg (106 downloads)

Re: What size Carb??? [Re: MoparDan] #574039 01/05/10 07:51 PM 01/05/10 07:51 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	Quote: 850DP or maybe something like a quick fuel 950. I have a quick fuel carb and am very pleased with it

Re: What size Carb??? [Re: khodne] #574040 01/05/10 08:19 PM 01/05/10 08:19 PM
Joined: Mar 2003 Posts: 600 Spartanburg SC MoparDan mopar
MoparDan mopar Joined: Mar 2003 Posts: 600 Spartanburg SC	For mainly street use / occasional track...Try a quick fuel 950, I really believe you will be happy. As far as headers 1"7/8 would be fine (minimum)being they are TTI's; Use 3" exhaust minimum

Re: What size Carb??? [Re: MoparDan] #574041 01/05/10 08:53 PM 01/05/10 08:53 PM
Joined: Oct 2005 Posts: 218 id usa 4 4spdfury enthusiast
4spdfury enthusiast 4 Joined: Oct 2005 Posts: 218 id usa	Holley has a carb selector on their website.

Re: What size Carb??? [Re: 4spdfury] #574042 01/05/10 08:57 PM 01/05/10 08:57 PM
Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central RobX4406 I Live Here
RobX4406 I Live Here Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central	950hp...

Re: What size Carb??? [Re: khodne] #574043 01/05/10 09:07 PM 01/05/10 09:07 PM
Joined: Feb 2005 Posts: 4,316 Prospect, PA BSB67 master
BSB67 master Joined: Feb 2005 Posts: 4,316 Prospect, PA	850 DP

Re: What size Carb??? [Re: MoparDan] #574044 01/05/10 09:24 PM 01/05/10 09:24 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.	For those cubes, i would go with an 1000HP series or maybe a Demon 850 & 2" primary headers, let that monster breath. http://cgi.ebay.com/ebaymotors/AED-1000-...=item45f02951ac http://www.jegs.com/i/Dougs-Headers/776/D452/10002/-1?parentProductId=763754 http://www.jegs.com/p/Barry-Grant/Demon-Mighty-Demon-Carburetors-General-Competition/754092/10002/-1 http://www.jegs.com/instructions/132/Demon.html 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: What size Carb??? [Re: BSB67] #574045 01/05/10 09:24 PM 01/05/10 09:24 PM
Joined: Nov 2009 Posts: 18 Wisconsin K khodne OP member
khodne OP member K Joined: Nov 2009 Posts: 18 Wisconsin	I have a Holley 870 Street Avenger with vacuum secondaries that I had planed on using. After reading the forms it looks like with the 4 speed a double pumper is the way to go.

Re: What size Carb??? [Re: khodne] #574046 01/05/10 11:23 PM 01/05/10 11:23 PM
Joined: Dec 2003 Posts: 5,314 Carstairs, Alberta, Canada dave571 master
dave571 master Joined: Dec 2003 Posts: 5,314 Carstairs, Alberta, Canada	850 mighty demon would be my pick

Re: What size Carb??? [Re: dave571] #574047 01/05/10 11:49 PM 01/05/10 11:49 PM
Joined: Nov 2009 Posts: 18 Wisconsin K khodne OP member
khodne OP member K Joined: Nov 2009 Posts: 18 Wisconsin	what cam's are you guy's using to break into the 11's. In your opinion what kind of Hp and times should I expect?

Re: What size Carb??? [Re: khodne] #574048 01/06/10 01:01 AM 01/06/10 01:01 AM
Joined: Dec 2003 Posts: 5,314 Carstairs, Alberta, Canada dave571 master
dave571 master Joined: Dec 2003 Posts: 5,314 Carstairs, Alberta, Canada	I run a racer Brown 242 @ 50 and 510 lift. My buddy runs the identical comp that you have, and runs about 1 tenth faster in car that's 100 pounds lighter. 9.6:1 440 with eddy heads. Import to realize that a good base engine. (cubes, heads, cam, etc) will only get you part way there. tune(timning, carb mix, and setting) gear, tire, etc.. is just as much part of getting it there.

Re: What size Carb??? [Re: khodne] #574049 01/06/10 06:49 AM 01/06/10 06:49 AM
Joined: Mar 2009 Posts: 2,464 Sydney,Australia tex013 top fuel
tex013 top fuel Joined: Mar 2009 Posts: 2,464 Sydney,Australia	i use a 825 mighty demon on my 440(10.78:1) it has run as quick as 11.35@119 this is with a purple 509 hydraulic cam,prepped stealth heads, 1 7/8 hooker comp headers into a 3" system with aero chambers with your extra cubes i'd go hp950,850 mighty demon or step up a little to a hp1050 i am thinking of getting a Prosystems 1050 later this year reasonable price for a custom carb have fun Tex New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive

Re: What size Carb??? [Re: tex013] #574050 01/06/10 07:38 AM 01/06/10 07:38 AM
Joined: Feb 2005 Posts: 283 N.E. England Roppa440 super street
Roppa440 super street Joined: Feb 2005 Posts: 283 N.E. England	A 850 Mighty Demon probably flows 950cfm. You are going to need at least 950 for that engine. I run a manual six pack that flows about that much and it is just about right for my "small" 440 that only runs high 11s in a 3950lb car. See what your manifold vacuum is when you pick a carb. Any more than 2 inches of vac at WOT and the carb is probably too small for drag racing. Dougs Headers are 2" primary and 3.5" collector. They are more like the size you need. 2002 Chevrolet Corvette 5.7 LS1 2011 Alpha Romeo Giulietta Veloce 1.6 JTD Because running a Mopar in the UK is getting TOO expensive!!

Re: What size Carb??? [Re: Roppa440] #574051 01/06/10 04:44 PM 01/06/10 04:44 PM
Joined: Jan 2003 Posts: 4,002 Joplin, Mo R rt66jim master
rt66jim master R Joined: Jan 2003 Posts: 4,002 Joplin, Mo	For the money a Pro Form 950HP would be a very good choice. Mine has been VG and just as fast as a 950HP Holley. Jim

Re: What size Carb??? [Re: khodne] #574052 01/06/10 07:18 PM 01/06/10 07:18 PM
Joined: Nov 2009 Posts: 2,275 Desert Tracker H HYPER8oSoNic top fuel
HYPER8oSoNic top fuel H Joined: Nov 2009 Posts: 2,275 Desert Tracker	Quote: I'm wondering what size carburetor to use on a 495 CI stroker? I used the 440 Source kit. Stealth heads, I had the 10 degree locks installed. A Comp Cam xtreme energy high lift .545 cam with duration at .050" of 241 on the intake and 247 on the exhaust. Indy dual plane intake. I'm planing on using TTI exhaust but unsure whether to use the 1 7/8" or 2". Suggestions on the Carburetor; type and size, and the header size will be greatly appreciated. Nice combo. I think that monster would like an Double pumper 850-870, (maybe a flowed version to 950 cfm, IF IT'S ROWED UPSTAIRS QUITE OFTEN), 2" primary headers (36-38" length), 12" collector length, necked to a 3" exhaust. (I would include a crossover in the system, if running a closed exhaust system on street/strip. More power!) Last edited by HYPER8oSoNic; 01/06/10 07:20 PM. "Stupidity is Ignorance on Steroids" "Yeah, it's hopped to over 160" (quote by Kowalski in the movie Vanishing Point 1970 - Cupid Productions)

Re: What size Carb??? [Re: Roppa440] #574053 01/06/10 08:16 PM 01/06/10 08:16 PM
Joined: Nov 2009 Posts: 18 Wisconsin K khodne OP member
khodne OP member K Joined: Nov 2009 Posts: 18 Wisconsin	The Doug's Header's look good from the posts I've read. I had never looked at them before. TTI's have gotten so out of line with their pricing. A few years ago my dad put them on his 440, he thought he had paid around $650-$700. Now they are $871.

Re: What size Carb??? [Re: khodne] #574054 01/06/10 08:39 PM 01/06/10 08:39 PM
Joined: Aug 2004 Posts: 8,087 Elk Grove, Calif. B bigblock340power master
bigblock340power master B Joined: Aug 2004 Posts: 8,087 Elk Grove, Calif.	I'm running a 416 stroker. I've tried a lot of carbs over the years. But my Quick Fuel 950 gives it just what it needs. My vote the 950.

Re: What size Carb??? [Re: bigblock340power] #574055 01/07/10 01:40 AM 01/07/10 01:40 AM
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'm running a 416 stroker. I've tried a lot of carbs over the years. But my Quick Fuel 950 gives it just what it needs. My vote the 950. He needs a carb that will truely flow 950-1000 cfm, a 950hp won't do it, all it is is a opened up 750dp, might work great on a stroked SB, but a stroked BB pushing 500 cubes needs decent CFM, not knocking the 950hp, its a great carb, but not for a combo like that if your after full potential. Thats why i recammemded either the 1000hp or 850 mighty demon, the 1000hp is a spiffied up 850dp, both these carbs flow well into the 900 cfm range. I had a fairly mild 446 with iron heads, it screamed with a set of 2" hooker headers & an 850dp, he has way more then that, plus its a stick car. 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

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