Will this cam and duel eddelb 4's work
01-17-2016, 03:36 PM
#3
Race Director
Before we get into the same ol' responses, yes it will work, No Carb calculators, the engine will only take what it needs. It will run out of the box but to get good gas mileage you will really have to tune it 
01-17-2016, 03:56 PM
#4
Melting Slicks
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Yes, it will "work" but you really need a couple of 950 cfm Holley Dominators on a tunnel ram to do any good. But to avoid detonation you must drop the compression ratio to around 4 to 1. Happy motoring.
01-17-2016, 03:59 PM
#5
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Will this cam work with duel 500 cfm eddel carbs
HI Thanks for quick response. Do you think maybe the XE262-10 cam would work better. I am trying to get a slightly loopy idle and torqey eng in mid range say 1200-5000 and reasonable milage. Timing base setting?? Thanks Dwight
01-17-2016, 04:00 PM
#6
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Okay, you need to put some kind of emoticon after your posts, 'cuz I can't tell when you're joking and when you're dead serious.
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01-17-2016, 04:21 PM
#7
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01-17-2016, 04:40 PM
#9
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You've double-posted this question. Here is my answer to your other duplicate post:
I've built and dyno tested a lot of 327/350 engines with the XE262 and the XE268 cams. I like the 268 in street cars, but that cam needs headers, a little compression and some taller gears in order to work well with an automatic - it will feel a bit sluggish off idle, but will pull well over 2500 rpm.
In general, I think the dual 500 EDL carbs is a bad idea. Run a single 650 or 750 4-barrel. The Stock Q-Jet (750 cfm), properly set up, will pull very strong. If you don't have the stock Q-Jet, you can run a 650 square bore with only a slight loss in low rpm torque and power.
If you're running stock exhaust manifolds, the 3.08 gears, stock low compression, and an automatic, you might want to consider the XE262 as a very nice upgrade over the stock cam. I ran a 327 with stock iron heads, Performer intake, 650 Street Demon and the XE262 cam and ended up with exactly 1 horsepower per cubic inch (328 horsepower and 367 ft/lbs torque). The engine was putting out 300 ft/lbs of torque at 2000 rpm, so it would be really well matched to a stock drivetrain automatic application. And skip the 1000-cfm dual carb setup...
Lars
In general, I think the dual 500 EDL carbs is a bad idea. Run a single 650 or 750 4-barrel. The Stock Q-Jet (750 cfm), properly set up, will pull very strong. If you don't have the stock Q-Jet, you can run a 650 square bore with only a slight loss in low rpm torque and power.
If you're running stock exhaust manifolds, the 3.08 gears, stock low compression, and an automatic, you might want to consider the XE262 as a very nice upgrade over the stock cam. I ran a 327 with stock iron heads, Performer intake, 650 Street Demon and the XE262 cam and ended up with exactly 1 horsepower per cubic inch (328 horsepower and 367 ft/lbs torque). The engine was putting out 300 ft/lbs of torque at 2000 rpm, so it would be really well matched to a stock drivetrain automatic application. And skip the 1000-cfm dual carb setup...
Lars
01-18-2016, 04:51 AM
#12
Melting Slicks
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Just For Looks?
As a cammed L-48 can only swallow around 450 cfm at 5000 rpm why would anyone want to put TWO 500 cfm carburetors on one? For the "cool" factor?
01-18-2016, 10:59 AM
#13
01-18-2016, 11:01 AM
#14
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Grumpy Jenkins used to run a pair of 660s on his 331 small block. Did he do that just for the "cool" factor?
01-18-2016, 11:26 AM
#15
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Not to mention the '69 Z/28 had a FACTORY option for the cross ram intake and TWO 600cfms on a 302ci. The regular intake carb setup was a 780 or 750cfm on a dual plane.
Last edited by Kubs; 01-18-2016 at 12:23 PM.
01-18-2016, 11:43 AM
#16
Race Director
That;s why I asked if you had the dual quads, if you didn't I would have suggested a single Holley, double pumper of course.
Since you have them they can be setup to run reasonably well but need to be tuned by someone who can tune a dual carb setup.
The cool factor is what I would be after
If I hear that %&#% formula for carb cfm again I am going to puke, it don't work it never did and it never will.
Since you have them they can be setup to run reasonably well but need to be tuned by someone who can tune a dual carb setup.
The cool factor is what I would be after
If I hear that %&#% formula for carb cfm again I am going to puke, it don't work it never did and it never will.
01-18-2016, 12:27 PM
#17
Le Mans Master
69427 you are correct Jenkins used 660 center squirter carbs,I was told he used 750 baseplate with lots of work.
Op.I know the temptation for the cool factor is strong,to make dual quads work you need more than a cam swap. You need more compression better heads and a cam matched to every other variable.you won't go wrong listening to Lars.he is a voice of reason unlike people recommending Dominators.
Op.I know the temptation for the cool factor is strong,to make dual quads work you need more than a cam swap. You need more compression better heads and a cam matched to every other variable.you won't go wrong listening to Lars.he is a voice of reason unlike people recommending Dominators.
01-18-2016, 12:41 PM
#18
Race Director
69427 you are correct Jenkins used 660 center squirter carbs,I was told he used 750 baseplate with lots of work.
Op.I know the temptation for the cool factor is strong,to make dual quads work you need more than a cam swap. You need more compression better heads and a cam matched to every other variable.you won't go wrong listening to Lars.he is a voice of reason unlike people recommending Dominators.
Op.I know the temptation for the cool factor is strong,to make dual quads work you need more than a cam swap. You need more compression better heads and a cam matched to every other variable.you won't go wrong listening to Lars.he is a voice of reason unlike people recommending Dominators.
My point is ; if he has the dual quad setup already why not try it. It is only a manifold / carb change and 2 hours labor to put a single carb on it.
01-18-2016, 01:10 PM
#19
Le Mans Master
Oh no doubt it would run,drivability and the lack of performance would be embarrassing. Unless it is for show only. I've run a dominator on a street 496 so using a big carb can be done on the street.in that case the motor could use it
01-18-2016, 01:22 PM
#20
Melting Slicks
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No, he used a pair of 660's because he was twisting his 331" to 9000+ rpm. A carburetor that will flow 600 cfm @ 1-1/2" Hg will flow a bit more @ 0" Hg as the 14.7 psi of our atmospheric pressure forces the air thru the venturi of the carburetor. I'll bet you thought engines SUCKED in air, huh?