Should I swap intakes

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71scamp78

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Alright guys got a question for a 67 B body with a 440. I have a 67 stock bodied and weight coronet it has a 446 ci. with stock heads bigger valves, cam is a .501 lift and 291 duration. The carb is a custom holley that flows around 775 cfm and the intake is a Victor 440. The stall is 3400 and rear gear is 4.11. The car seems pretty strong down low. My friends wants the intake for his car and says he will get me whatever intake I want. My car is a street strip car so just wondering if a Holley strip dominator , Eddie rpm or something else work better. Haven't had a chance to take to track yet due to winter and just got car a few months ago. Thanks guys
 
I don't know anything about 440s.

Still, I have an opinion.
The AG on my 367 was dynomite as a DD/streeter with a 292/508/108 cam, especially as I swapped down from bigger gears. Mine was a stick car. But at 3.55 things got doughy off the line. It was just too much cam for my driving style and 3.55s. That cam pulled to 7000 or more through the AG and a 750DP.I wanted to hit 60 and be outta revs.That would take 3.23s with my combo, and the 292 was having none of it with the 3.55s already. I got rid of that cam. Different story.
The AG seems to be well-respected in this community for it's ability to cover both ends of the rpm spectrum. They say it's actually better at pulling up the lowspeed torque while not giving up anything at the top. The 292 may be the top of it's comfort zone, and since you have way more torque than you need at the bottom, for your stated purpose, I would tend to think that this particular swap would be a wash for you. No wins,no losses. Well except for fuel economy. You may be able to lean out the lowspeed circuit some with the AG.
The AG was my 4th manifold purchase; and there's no going away from it for me. It has been on there now thru 3 cam swaps 2 carbs, many many rear gear swaps, and all of Ma-Mopars A833 iterations.
It just does everything.
Remember, this is on a 367
 
Edelbrock performer RPM would really be the only other choice. It may work better... It may not. IQ52 may be able to give you some insight into this. If your combo is working I'd be hard pressed to change it.
 
roccodart440 said:
Edelbrock performer RPM would really be the only other choice. It may work better... It may not. IQ52 may be able to give you some insight into this. If your combo is working I'd be hard pressed to change it.
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Yeah that's what I was thinking if I did change maybe do the rpm. I may just stick with the victor for now..maybe if I changed to a more street gear change then
 
Personally with your setup I think you'd benefit from the performer RPM but again, only one way to find out and you may regret that experiment.
 
I use the RPM intake and like it a lot. My car is used for street and strip. The Victor 440 is a single plane intake were you can loose some torque on bottom end compared to the RPM intake which is a dual plane intake. To me your car would run better without a single plane intake because of you cam. If you would decide to go with a dual plane intake, make sure you gasket match it to the heads. The Victor intake is very good for top end. On a motor with a bigger cam and better heads, I would use the Victor 440, which I run on a 505 stroker motor in my other car
 
had the comp cam 501/292 in the 440 that was in my 64 valiant and 72 demon. at the time i used the weiand 8009 dual plane intake and it ran awesome. today i'd go with the performer RPM.. that intake seems to be the best of both worlds.
 
68dodge said:
I use the RPM intake and like it a lot. My car is used for street and strip. The Victor 440 is a single plane intake were you can loose some torque on bottom end compared to the RPM intake which is a dual plane intake. To me your car would run better without a single plane intake because of you cam. If you would decide to go with a dual plane intake, make sure you gasket match it to the heads. The Victor intake is very good for top end. On a motor with a bigger cam and better heads, I would use the Victor 440, which I run on a 505 stroker motor in my other car
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Lol what sucks is I got a 505 I'm building right now and I'm going to use a rpm on it because I don't believe the victor will fit under the stock hood. 505 is going in my duster street strip car 4500 stall 4.30 gear with Eddie rpm heads competition valve job
 
71scamp78 said:
Lol what sucks is I got a 505 I'm building right now and I'm going to use a rpm on it because I don't believe the victor will fit under the stock hood. 505 is going in my duster street strip car 4500 stall 4.30 gear with Eddie rpm heads competition valve job
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To use the RPM you will have to use a drop base air filter.
 
roccodart440 said:
Personally with your setup I think you'd benefit from the performer RPM but again, only one way to find out and you may regret that experiment.
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With his set up I believe he will see an overall gain with the RPM intake . The power increase in the lower rpm ranges will more than offset the small loss from 5,200-6000 rpm.

68dodge said:
To use the RPM you will have to use a drop base air filter.
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The carburetor pad center height on the RPM is 5.35" and the Victor is 6.10". Whatever air cleaner set up he is using on the Victor should work on the RPM intake.
 
IQ52 said:
With his set up I believe he will see an overall gain with the RPM intake . The power increase in the lower rpm ranges will more than offset the small loss from 5,200-6000 rpm.


The carburetor pad center height on the RPM is 5.35" and the Victor is 6.10". Whatever air cleaner set up he is using on the Victor should work on the RPM intake.
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Will a Victor work on a stock duster hood I have a rpm intake . The Coronet has a hemi scoop so any intake world on it. I hate to swap them out if they won't work even with a drop air cleaner
 
71scamp78 said:
Will a Victor work on a stock duster hood I have a rpm intake . The Coronet has a hemi scoop so any intake world on it. I hate to swap them out if they won't work even with a drop air cleaner
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I cannot say for sure. The Victor is 3/4" taller than the RPM. It's time to get the old tape measure out and see if the Victor fits.
 
Edelbrock Performer RPM is an awesome intake but, you need a little bigger carb for a 440, 850 cfm holley with vacuum secondaries for a street car.
 
To me depends how well it hooks up now.
If the tires go up in smoke every time you hit the throttle now then you don't need more low end.
 
hotrod360andy said:
Edelbrock Performer RPM is an awesome intake but, you need a little bigger carb for a 440, 850 cfm holley with vacuum secondaries for a street car.
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RPm intake is awesome, yes

Bigger carb for a 440, yes

Vacum secondary's for a street car, HELL NO. Age old myth created by people who can't tune or drive a car.
 
IQ52 said:
With his set up I believe he will see an overall gain with the RPM intake . The power increase in the lower rpm ranges will more than offset the small loss from 5,200-6000 rpm.


The carburetor pad center height on the RPM is 5.35" and the Victor is 6.10". Whatever air cleaner set up he is using on the Victor should work on the RPM intake.
Click to expand...
Agree, but neither will work on my 68 fish, w/ a 4 1/2" air cleaner. victor only if going to a small air cleaner or none at all. Am using a drop base too. Agree, but w/ a 505' stroker, a little low end loss isnt`my main concern.
roccodart440 said:
RPm intake is awesome, yes

Bigger carb for a 440, yes

Vacum secondary's for a street car, HELL NO. Age old myth created by people who can't tune or drive a car.
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With a car as heavy as urs, a set of low flowing heads like urs, and that small of cam and carb, I agree, the rpm would probly be best.
 
roccodart440 said:
RPm intake is awesome, yes

Bigger carb for a 440, yes

Vacum secondary's for a street car, HELL NO. Age old myth created by people who can't tune or drive a car.
Click to expand...

:thumbsup:

From 1981>1987 drove nothing but 750/850DP's on the street with my '71 340- 727 s-strip car, was awesome, VS carbs were a major loss in performance and lasted 1 day on the car with plenty of effort to tune it. Same with my 446ci car.
 
Last edited:
RPM intake and keep the carb, 775 cfm is plenty for a mild 440.
 
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