This is topic anyone know how to tune in carbs? in forum Tech Talk at Northern California Ford Owners  .


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Posted by big matt (Member # 1124) on :
 
i will pay
its a holly 830 annular
i cant get it to run right and dont know what to do.
thx
 
Posted by FasterDamnit (Member # 442) on :
 
Take it Advanced Dyno Technologies in Suisun. 707-425-DYNO. The dyno and tune serious carb'ed race cars regularly. With the wideband O2 sensor they can dial it in easily. Tell the owner, HH, that Jim w/ the green 5.0 mustang sent you.
 
Posted by big matt (Member # 1124) on :
 
k
 
Posted by 66 AC COBRA (Member # 904) on :
 
what is the problem, to much fuel on top, to little, bottom end stumble, horrible idle

is it just me or does an annular 830 sound a little big for a 331, even if it is stout
 
Posted by Chosen1 (Member # 1906) on :
 
quote:
Originally posted by 66 AC COBRA:
is it just me or does an annular 830 sound a little big for a 331, even if it is stout
even though its advertised as an 830, id be willing to bet it actually flows about the same if not less than a 750 mighty demon. and even with a mighty demon, i'd say thats a little much.

does it idle? does it fall flat on its face when you give it gas?
 
Posted by big matt (Member # 1124) on :
 
it idles too high and i cant get it down, when i give it gas its real responsive

but the idle issue is pissin me off.
 
Posted by Chosen1 (Member # 1906) on :
 
check for vacuum leaks, and then check your idle screw
 
Posted by big matt (Member # 1124) on :
 
there is no vaccuum leaks. i put a different carb a holly 850 and it runs perfect, but its not my carb.
 
Posted by Camaro Kid Z/28 (Member # 3100) on :
 
check the secondary idle screw,it is located under the carb on the side(under the basepalte),its a little screw you can turn with a small screwdriver(holley put them there for engines that need extra air/fuel sometimes they're set too high and no matter what you do, you cannot bring down the idle even if you close off the primary throttle blades!hope this helps! [patriot]
 
Posted by big matt (Member # 1124) on :
 
i tried it. no help.
thx though
 
Posted by Chosen1 (Member # 1906) on :
 
when it ran with 850, how much vacuum were you pulling?
 
Posted by big matt (Member # 1124) on :
 
didnt check, i will though.
 




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