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Discussion Starter #1
:)
i just bought jet extensions for my holley 4160 and i guess
i'm wondering if i just blew 7.50 or not. i know the basics
but explain it to me like i'm an idiot to make sure i don't
miss anything.
 

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Typically, jet extensions are only ran in the rear jets, which a 4160 Holley does not have. Holley 4160's use a metering plate instead.
 

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Discussion Starter #3
StangLX302 said:
Typically, jet extensions are only ran in the rear jets, which a 4160 Holley does not have. Holley 4160's use a metering plate instead.
doh. se la ve. (i think i spelled that right)
 

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83v6carb said:


doh. se la ve. (i think i spelled that right)
c'est la ve (i think)
 

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Discussion Starter #5
ok, well i got the jet extensions today and they're not jet
extensions really. i suppose i should have said i'm using a
holley adjustajet plate on the front and these are specifically for
that plate and they have adjustajet printed on the front of the
box. AAJ's are meant for the front of the carbs so, again, why
would they be needed? now that i have em is there any way
they could be detrimental?

thanks again.
 

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In a mid 1.50 60' set-up, I noticed no difference. I left them in, becuase they were the old 'solder-in place' style. In a real hard leaving car (atleast quicker than mid 1.50's) it may have been noticeable.

Not saying anything is wrong with them, but I think the car needs to real hard launcher to realize the improvement.

Buddy Rawls
www.wighat.com/fcr3
 

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Discussion Starter #7
well i got em so i may as well install em. and i'm not really a
drag racer, more into road racing. so would they be a benefit
in really hard cornering/
 
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