3x2 modification - Impala Tech
Performance Our High Performance Area

LinkBack Thread Tools
post #1 of 3 (permalink) Old 03-03-2009, 12:36 PM Thread Starter
Join Date: Dec 2008
Location: tampa,fl
Posts: 54
3x2 modification

I have purchased a 3x2 intake and also found 3 2gc carbs.I know that there are conversion kits available but in these times of low funds would like to convert the 2 end carbs myself.I know to eliminate all the choke parts and as far as the bases go to plug all vac ports and elimated idle mixture.what other mods do I need to make internal.also what jets would you recomend.plan to build a 348 stroked to 427.will also runs an aggresive cam that will be barlly streetable.car will have a t56.if anyone has a link to an article that would be great
flpackerbacker is offline  
Sponsored Links
post #2 of 3 (permalink) Old 03-03-2009, 04:04 PM
Join Date: Jan 2006
Posts: 12,383
I will have to research that, but from memory there was a progresive (cam actuated not a rods and stops) that opened the end barrells at about 2/3 of the center opening. I would look on the Poncho boards as well as Pontiac ran the same linkage and carbs on the 389 Tin Indian. If the original parts are not available; I vaugly remember an article in Hot Rod (or Car Craft, or Cars High Performance) back in 1964-'65 or so about tuning the three two's with a card board template of the piece needed to bolt onto the center carb throttle lever I will have to pull them all out and reread them to find it if it ever existed.

Big Dave
Big Dave is offline  
post #3 of 3 (permalink) Old 03-03-2009, 04:26 PM Thread Starter
Join Date: Dec 2008
Location: tampa,fl
Posts: 54
thanks dave.have found a progressive linkage system that works as you stated.on the inside I belive that I have to block the power valve off for the end carbs.watched an episode of gears that did the conversion but they were pushing buying the kit from a sponsor.they did not get into muck detail other than to follow the instructions.I'm sure with the talant on this site we con figure out a more cost effective way
flpackerbacker is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Impala 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 for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may 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