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Holley 4237 with auto 78?

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Old Sep 30, 2007 | 04:10 AM
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Default Holley 4237 with auto 78?

I wondering what the pro's and con's are to putting on a holley 4237, it has mechanical secondaries. Ive got a 78 auto vette

cheers

Dave
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Old Sep 30, 2007 | 06:05 AM
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find it at the curb on trash day?
i cant find that #
whaT IS IT?
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Old Sep 30, 2007 | 07:00 AM
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Originally Posted by Matt Gruber
find it at the curb on trash day?
i cant find that #
whaT IS IT?
lol, a very kind person gave it to me

its a carb from the early 70's, its a double pumper, a direct replacement for the Q-jet, bolts straight on, mechanical secondaries, etc

dave
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Old Sep 30, 2007 | 07:14 AM
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sounds very good so far.
any other #'s on it?
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Old Sep 30, 2007 | 08:23 AM
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Originally Posted by Matt Gruber
sounds very good so far.
any other #'s on it?

it has "6R 4237 B", on the main body, it has 8522/6210 on one end and on the other end, it has 7866/6240(6 or 5)

thats all the numbers I can see, I did a search on google for it, a few threads come up for it

dave
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Old Sep 30, 2007 | 09:30 AM
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6210!
http://community.webtv.net/MATTGRU/carb
great find! get a kit, rebuild it.
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Old Sep 30, 2007 | 02:33 PM
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Originally Posted by Matt Gruber
6210!
http://community.webtv.net/MATTGRU/carb
great find! get a kit, rebuild it.

its from a manual car, mines a auto, what happens for kick down wire?

is this carb ok for a auto box, in terms of driving the car??

what kit?, where from?

cheers

dave
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Old Sep 30, 2007 | 03:01 PM
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Stay with vac 2nds on your automaitic to avoid the possibilities of drivability issues.
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Old Sep 30, 2007 | 03:17 PM
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Originally Posted by agent kronus
its from a manual car, mines a auto, what happens for kick down wire?

is this carb ok for a auto box, in terms of driving the car??

what kit?, where from?

cheers

dave
Excellent for automatic. have to hook up cable/switch
Kit from auto supply or jegs/summit. 37-605 renew kit

Last edited by Matt Gruber; Sep 30, 2007 at 03:32 PM.
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Old Sep 30, 2007 | 03:21 PM
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6210, 650cfm spreadbore should be set up for a good street carb.
holley renew kit #HLY-37-605, $32.95 www.summitracing.com

Last edited by Little Mouse; Sep 30, 2007 at 03:30 PM.
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Old Sep 30, 2007 | 04:03 PM
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Originally Posted by Matt Gruber
Excellent for automatic. have to hook up cable/switch
Kit from auto supply or jegs/summit. 37-605 renew kit
is there a hook on the throttle linkage ready to take auto kick down cable, or do have to put something on it?
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Old Sep 30, 2007 | 04:03 PM
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Originally Posted by TheSkunkWorks
Stay with vac 2nds on your automaitic to avoid the possibilities of drivability issues.
could you give me some details in what your meaning?

cheers

dave
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Old Sep 30, 2007 | 04:33 PM
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Mechanical 2nds typically work better on high-perf engines with manual transmissions. Mechanical 2nds on heavy automatics with standard engine performance can tend to have a hole in throttle response, as if "over-carbed". A properly tuned vac 2nd carb avoids this.
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Old Sep 30, 2007 | 05:20 PM
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Originally Posted by agent kronus
is there a hook on the throttle linkage ready to take auto kick down cable, or do have to put something on it?
you have both! u tell us! if u can't hook up the trans, skunkworks is right! big hole!
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Old Sep 30, 2007 | 07:24 PM
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ok, thanks info everyone

dave
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