Jets changed in 4160 - Team Camaro Tech
Tech 2000 Our previous General Forum
Replies ONLY - no new topics.

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old Apr 14th, 01, 03:43 PM Thread Starter
Gold Lifetime Member
joseph l clance
joe clance's Avatar
Join Date: Mar 2001
Location: KC, MO
Posts: 991
Thumbs up

Thanks to all that responded. I opened the float chamber and discovered the jets were 65H. I decided that going lower would not enhance performance (from other 600cfm discussions on posted topics) , so i up the jet size to 69. After installing, Man, what a noticable difference, this car really rips. Transistion into second gear is significantly stronger (like someone added 50cids)and pulles alot harder into third gear.

This 4160 has a secondary plate that is labled 134-39??? what do the numbers mean?What is the plate, and is it a good thing?

thx all
joe c.
joe clance is offline  
Sponsored Links
post #2 of 3 (permalink) Old Apr 16th, 01, 03:54 AM Thread Starter
Gold Lifetime Member
joseph l clance
joe clance's Avatar
Join Date: Mar 2001
Location: KC, MO
Posts: 991

What is the rear secondary plate?
joe clance is offline  
post #3 of 3 (permalink) Old Apr 16th, 01, 10:14 AM
Team Member
JohnZ's Avatar
Join Date: Sep 2000
Location: Washington, Michigan USA
Posts: 7,728

4160's have a secondary metering "plate" with built-in fixed orifices instead of replaceable jets (4150's have a secondary metering "block" that uses the same kind of replaceable jets used in the primary metering block on both carbs). On a 4160, you have to swap out the entire metering plate instead of just changing secondary jets; the Holley site ( ) has info on which number metering "plate" translates into what regular Holley jet size. Holley sells conversion kits so you can replace the metering plate with a regular metering block so you can change secondary jets instead of buying a bunch of metering plates.

'69 Z28 Fathom Green
JohnZ is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome