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bob401 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob401 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/20/2013 at 4:44pm
Originally posted by fast401 fast401 wrote:

I am interested in a pair of shorties because of ground clearance issues.  Can they be at least        2 1/2 or maybe a prefered 3 inch collector?  I found with the dyno test that the edelbrock shorties did very little ( a 2.5 hp gain and 10 ft lbs) over the massaged factory freeflows.


Im curious what were the dyno tested on?  horsepower level , engine out of car or at the rear wheels?? And how massaged were the factory free flows? Im thinking I might want to go back to manifolds.. 
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fast401 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fast401 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/20/2013 at 9:27pm
The test was done on an engine dyno with a 30over 401.  The manifolds were massaged around the AIR humps (flattened out).  The HP numbers could have been better but I am running the Offenhauser 2 X 4 intake which is somewhat restrictive.  The results were:
 
366hp and 401 torque  Massaged manifolds
368hp and 411 torque  Edelbrock shorties
382hp and 430 torque  Long tubes
Disturbing the peace since 1970!!!   AMX 19245
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bob401 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bob401 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/23/2013 at 4:10am
Thanks for the reply... The next time i need to pull my engine 1/2 way out I will be more inclined to do pull them.   Might as well start grinindinG my other manifolds...LOL
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purple72Gremlin View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote purple72Gremlin Quote  Post ReplyReply Direct Link To This Post Posted: Dec/01/2014 at 9:39pm
Id be interested in shortys if they fit a small car.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SirDigger Quote  Post ReplyReply Direct Link To This Post Posted: Jan/10/2015 at 3:26pm
Any news to the shortys? Al 
SirDigger&his german Friends are looking for Parts http://theamcforum.com/forum/the-german-amc-forum-ambassadorsirdigger-needs_topic83570.html
1970 Javelin SST 304
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rsrguy3 Quote  Post ReplyReply Direct Link To This Post Posted: Jul/28/2015 at 2:22am
Yes please shorty info.
javguy
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javelinman74 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote javelinman74 Quote  Post ReplyReply Direct Link To This Post Posted: Jul/28/2015 at 8:31am
Thank You Al!
For all the great items and support to the hobby!
Blessings
Richard
www.a70sthingautomobilia.com
It Used To Be an AMC Thing...
     No One Understands!
1982 Eagle SX/4
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401harry View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 401harry Quote  Post ReplyReply Direct Link To This Post Posted: Jan/03/2017 at 3:38pm
Are the long tube headers still available? 
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71 Javelin AMX O.O. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 71 Javelin AMX O.O. Quote  Post ReplyReply Direct Link To This Post Posted: Jan/04/2017 at 9:20am
I also have issue with my original Doug Thorthly headers frying the original starter and not wanting to go with an aftermarket mini starter.
Will I still need to install the right side header and the starter at the same time? Is there more clearance at the starter head, giving it more cooling room? A picture of the header and starter would be great.
Steve
Original owner
1971 Javelin AMX
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Scene One View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scene One Quote  Post ReplyReply Direct Link To This Post Posted: Jan/04/2017 at 7:14pm
Originally posted by 401harry 401harry wrote:

Are the long tube headers still available? 

Yes, but as I understand it they are out of stock currently. I was told there next order would be arriving in Feb. I am patiently waiting to get a set myself. They have a good web-site if you would like to check them out.
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