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500 cube fuel system questions #906664
01/16/11 06:32 PM
01/16/11 06:32 PM
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Idaho
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boomerodell Offline OP
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Need to pick an intake and carb setup for the new motor. Mainly street driven but will go to the track from time to time. Pretty basic.
500 around 10:1, Template ported 906's 2.14 1.81 valves etc.
Comp solid 294 560 lift with 1.6 rockers.
In a 70 challenger 5 speed manual with 4:10s. Everything needs to fit underneath the rally hood so I was just curious if I would have any clearance issues. Anyone run the indy dual plane? How will a single plane work on the street? Been looking at the holley hp carbs thinking 950 or 1000cfm. Also car has 5/16 fuel lines still, will I have any issues with getting enough fuel?

Re: 500 cube fuel system questions [Re: boomerodell] #906665
01/16/11 06:45 PM
01/16/11 06:45 PM
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STL ,MO
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Handygun Offline
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If I had a wedge on the street, the Indy dp would be on it. 3/8 line wouldn't hurt. I thought I read somewhere that those Holley hp #'s were bogus.

Re: 500 cube fuel system questions [Re: Handygun] #906666
01/16/11 07:19 PM
01/16/11 07:19 PM
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Dandridge TN
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Dabee Offline
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Quote:

If I had a wedge on the street, the Indy dp would be on it. 3/8 line wouldn't hurt.






I have an Indy single plane on my 512 wedge now with a Quick-Fuel 1050, but it is getting the Indy DP soon. The single plane has a very slight stumble between 1800 and 2200 rpm that I can’t tune out. Above 2200 response is instant. I have tried different shooters, changed timing, and adjusted everything on the carb. I believe the plenum volume on the SP slows the velocity down to much to much for low RPM operation. I have a Gear Venders on my car so it runs in the 1800 to 2200 rpm range most of the time when I don’t have my foot in it. Save your self a lot of frustration and go with the Indy DP intake.

Re: 500 cube fuel system questions [Re: Handygun] #906667
01/16/11 07:23 PM
01/16/11 07:23 PM
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Lincoln Nebraska
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RapidRobert Offline
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You have a monster. At least 3/8 maybe 1/2. Single plane for sure, MP M1 maybe. One of the reworked Holley clones (not sure which brand, I'm not a holley guy)


live every 24 hour block of time like it's your last day on earth
Re: 500 cube fuel system questions [Re: boomerodell] #906668
01/16/11 09:07 PM
01/16/11 09:07 PM
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Prospect, PA
BSB67 Offline
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The Holley SD will work well with what you have and fit easily under the hood. At your power level, I don't think that there will be much differencr between it and the 440-2D. If you have some left over space between the hood and air cleaner, add an open spacer. The added plenum volume will pick it up a little.

It's not just the fuel line size, it the whole fuel delivery system so its hard to tell. If you have 4.5 psi at the carb at the top of the rpm range you'll be okay.

Re: 500 cube fuel system questions [Re: BSB67] #906669
01/16/11 09:27 PM
01/16/11 09:27 PM
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Benton, IL.
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DaveRS23 Offline
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I ran the Holley SD on my 499 for a couple of years before I went to the -3 Indy. Worked just fine on the street.

You will definitely need 3/8 line if you are making good HP. The heads may limit that a good amount.

I still ran into occasional fuel starvation at the track with 3/8 hard line. It was going to be a major pain to run 1/2. So I ran 3/8 hose and reamed all the fittings out as much as possible. I have been running this set-up for several years now. No problems and plenty of fuel to the carb.


I run a mechanical pump that is backed up with an electric one, that is triggered by a switch on the secondaries of the carb. Works great for street/strip.


Master, again and still
Re: 500 cube fuel system questions [Re: DaveRS23] #906670
01/16/11 09:40 PM
01/16/11 09:40 PM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:

I run a mechanical pump that is backed up with an electric one, that is triggered by a switch on the secondaries of the carb. Works great for street/strip.


Best idea I've heard all year (16 days), that'd sure extend the life of the elec & prob keep you from having to run a reg


live every 24 hour block of time like it's your last day on earth
Re: 500 cube fuel system questions [Re: RapidRobert] #906671
01/16/11 11:46 PM
01/16/11 11:46 PM
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Idaho
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boomerodell Offline OP
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Thanks for the quick replys. The dual plane will probably be the best choice for the street. Probably better update my fuel system too. Thanks

Re: 500 cube fuel system questions [Re: boomerodell] #906672
01/17/11 04:55 PM
01/17/11 04:55 PM
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Woodinville, WA
Viol8r Offline
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Woodinville, WA
You will be very limited by the 906's. So I would run RPM or Indy Dual plane, with a well built 950 DP (call Jesse and BIGS Carbs). If its mostly street driven, there will be no need to for anything else. 3/8 line will be fine but would consider putting in an electric pump with a return line.

Re: 500 cube fuel system questions [Re: boomerodell] #906673
01/18/11 05:30 PM
01/18/11 05:30 PM
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Spring Valley ,Ca.
moparsquid Offline
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im running a 500ci with eddymax heads and wm x-ram with 2 600 holleys.and a 3/8 fuel line and a e-pump. good idle for street use and has tons of power.

Re: 500 cube fuel system questions [Re: BSB67] #906674
01/18/11 11:21 PM
01/18/11 11:21 PM
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oklahoma
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forphorty Offline
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Quote:

The Holley SD will work well with what you have and fit easily under the hood. At your power level, I don't think that there will be much differencr between it and the 440-2D. If you have some left over space between the hood and air cleaner, add an open spacer. The added plenum volume will pick it up a little.

It's not just the fuel line size, it the whole fuel delivery system so its hard to tell. If you have 4.5 psi at the carb at the top of the rpm range you'll be okay.



Re: 500 cube fuel system questions [Re: forphorty] #906675
01/19/11 02:06 AM
01/19/11 02:06 AM
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Idaho
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boomerodell Offline OP
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Ok a few other questions. Been looking at some complete fuel system kits from summit and jegs and they seem pretty reasonable. Electric fuel pump, braided lines, fittings, etc. (the actual summit and jegs brand kits)
What exatcly does -6 and -8 mean or measure? Is that like 3/8 and 1/2? Are these kits worth while or overkill? Should I just replace my 5/16 with a 3/8 from like year one and splice in a electric pump? But by the time I do that it would have probably been just as easy to buy a kit. Sorry for the dumb questions just want to get this right the first time. Indy must be proud of that intake(kinda spendy compared to a rpm) j/k.Thanks

Re: 500 cube fuel system questions [Re: boomerodell] #906676
01/19/11 04:15 AM
01/19/11 04:15 AM
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QLD Australia
Keith Black® Offline
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Quote:

Ok a few other questions. Been looking at some complete fuel system kits from summit and jegs and they seem pretty reasonable. Electric fuel pump, braided lines, fittings, etc. (the actual summit and jegs brand kits)
What exatcly does -6 and -8 mean or measure? Is that like 3/8 and 1/2? Are these kits worth while or overkill? Should I just replace my 5/16 with a 3/8 from like year one and splice in a electric pump? But by the time I do that it would have probably been just as easy to buy a kit. Sorry for the dumb questions just want to get this right the first time. Indy must be proud of that intake(kinda spendy compared to a rpm) j/k.Thanks




-6 (or dash 6) means 6/16,
-8 means 8/16 of an inch.
these are AN measurements (Army Navy stds). Outside diameter to the best of my knowledge.

the other guys will reply regarding appropriate sizing.


--------------------------------
Darren Beale
Keith Black Racing Engines®
Re: 500 cube fuel system questions [Re: Keith Black®] #906677
01/22/11 04:13 AM
01/22/11 04:13 AM
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Balt. Md
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383man Offline
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I am building a 493 right now for my 63 and I will be using the Indy dual plane intake with Max Wedge ports. I am using Indy EZ heads with Max Wedge size ports also. I have heard from alot of people the Indy dual plane works very good for a street/strip build. The Performer RPM and Holley Street Dominator are also good intakes with stock size ports. I will be running Max Wedge size ports and its very easy to get the Indy dual plane to Max Wedge ports. I also run a 3/8 line with just an electric pump. Good luck with your build. Ron

Re: 500 cube fuel system questions [Re: Keith Black®] #906678
01/22/11 12:30 PM
01/22/11 12:30 PM
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Ontario, Canada
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Stanton Offline
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Quote:

Indy must be proud of that intake(kinda spendy compared to a rpm)




Try hogging out another brand dualplane to max-wedge ports and then tell me if the Indy isn't the better deal!

Re: 500 cube fuel system questions [Re: Stanton] #906679
01/22/11 05:57 PM
01/22/11 05:57 PM
Joined: Dec 2004
Posts: 10,554
Rittman Ohio
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Rittman Ohio
Quote:

Quote:

Indy must be proud of that intake(kinda spendy compared to a rpm)




Try hogging out another brand dualplane to max-wedge ports and then tell me if the Indy isn't the better deal!



I'm pretty sure he isn't "hogging out" the stock heads to MAX WEDGE size by reading his original post. So if the OP wants a good intake for street and strip without M-W ports I would use a RPM intake and a QFT 1050 on a 4150 based carb.I have this same unit on my std.port EZ's and it will be in the tens this spring
Oh and it all fits under my stock hood with a drop base air cleaner and a 4"element
I run a single Carter electric race pump out back to a std.Holley reg with 1/2 line.
Gus


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: 500 cube fuel system questions [Re: boomerodell] #906680
01/23/11 02:55 PM
01/23/11 02:55 PM
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Posts: 178
Idaho
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boomerodell Offline OP
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What about this mopar intake? Looks very similar to the rpm? Anybody run it? Tried to look if up on mopar site but not very much info.Thanks

http://www.summitracing.com/parts/DCC-5153525/

Re: 500 cube fuel system questions [Re: boomerodell] #906681
01/23/11 04:13 PM
01/23/11 04:13 PM
Joined: Dec 2004
Posts: 10,554
Rittman Ohio
fourgearsavoy Offline
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Rittman Ohio
I have seen that intake and it has to be an RPM that Edelbrock cast for MP
Gus


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60






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