Author Topic: Factory 340 intake vs. Holley Street Dominator  (Read 4954 times)

Offline RCCDrew

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Factory 340 intake vs. Holley Street Dominator
« on: September 02, 2011 - 06:06:46 pm »
I have a 340 Cuda built to 70 specs except for a .484" Cam and Headers.  It currently has the factory 340 intake and runs well.  I have a Holley street dominator intake that I would like to put on if it will help the cause.  Since the intake gasket is leaking I might as well change it.  Let me know what you think. 




Offline femtnmax

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #1 on: September 02, 2011 - 09:15:13 pm »
Assuming the car is for street use, maybe has auto trany or highway axle gear ratio...
The Holley street dominator is a single plane intake manifold.  If any of my first sentence is true the single plane intake will absolutely kill low speed torque. 
I had a 340 duster with auto trany and 3.23 axle gears.  I tried a single plane intake.  What a mistake...turned the car into a dead dog for street use.  Ended up putting the OEM dual plane intake back on and sold the single plane.
The 340 cast iron intake is a very good intake manifold.  The best dual plane aluminum intakes gain very little in performance.   Look for an Edelbrock LD-340 aluminum intake if you want the weight savings.
Phil

Offline RCCDrew

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #2 on: September 02, 2011 - 09:55:58 pm »
Yup, auto trans and stock gears.  Want to step up to the 3.9 range in the rear gear.  Maybe then I will swap the intake. 

Offline Chryco Psycho

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #3 on: September 03, 2011 - 09:44:09 am »
the RPM Air gap is one  of the best intake s to swap to

Challenger - You`ll wish You Hadn`t

Offline RCCDrew

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #4 on: September 03, 2011 - 01:55:29 pm »
the RPM Air gap is one  of the best intake s to swap to
The air gap is a dual plane?  I have been out of the small block thing for a while. 

Offline Chryco Psycho

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #5 on: September 03, 2011 - 04:03:27 pm »
Yes it is
So you have the Cuda now ?? Congrats  :2thumbs:

Challenger - You`ll wish You Hadn`t

Offline RCCDrew

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #6 on: September 05, 2011 - 02:17:56 am »
Yes it is
So you have the Cuda now ?? Congrats  :2thumbs:
Yeah, finally got it.  Its not what your charger is mechanically, but the wife loves it and she wants to take it over when I get a charger in a couple years. 

Can anyone link to some info about the air gap?  I have heard they are good but would like to see some info for myself.  I'm ready to order one, but want to see what it will do on a mild 340 like mine. 

Offline Chryco Psycho

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #7 on: September 06, 2011 - 09:35:47 am »
I am sure my Charger will still be available when you are ready !!
 in 3 years of advertising it you are the only interested person I have come across unless I give it away .

Challenger - You`ll wish You Hadn`t

Offline RCCDrew

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #8 on: September 06, 2011 - 01:55:27 pm »
I am sure my Charger will still be available when you are ready !!
 in 3 years of advertising it you are the only interested person I have come across unless I give it away .
I hope you sell it even though I would love to have it. My wife and I were trying to figure out how to get both. I'd probably have to sell all my other toys.

Offline femtnmax

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #9 on: October 17, 2011 - 02:41:22 pm »
Can anyone link to some info about the air gap?  I have heard they are good but would like to see some info for myself. 

Here is one engine build that tested the RPM air gap.  They said: 
"Installed Edelbrock Performer RPM "Air Gap" intake manifold, which was the best single-gain swap yet"

Read more: http://www.popularhotrodding.com/enginemasters/articles/chevrolet/smallblock/0412em_small_block_chevy_engine/viewall.html#ixzz1b48yS6sf
 
Phil

Offline AARCUDADEN

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Re: Factory 340 intake vs. Holley Street Dominator
« Reply #10 on: January 05, 2012 - 09:34:40 pm »
the RPM Air gap is one  of the best intake s to swap to
:iagree: I have the RPM Air Gap on my 340 in my Dart Sport and like the performance. You won't be disapointed with that intake.
Dennis,Ohio