Carb Selection - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old Jul 1st, 15, 11:12 PM Thread Starter
Senior Tech
Chad
 
cv2065's Avatar
 
Join Date: Jul 2012
Location: Orlando, FL
Posts: 1,193
Carb Selection

Hey guys...trying to tie up the remaining parts for my engine install in a couple of months. I completed my 383 a month ago, but had to put in storage due to moving, and won't have out for another couple of months.

Having issues deciding over which carb to get. Pure street engine that won't see the high side of 6500, Edelbrock 170cc heads, Air Gap intake, and 2204 cam (234/[email protected]).

Edelbrock recommends an 800 AVS, but that seems too big based on the calculations, which says closer to a 750 Performer, but I like the extra features of the Thunder Series, which is only offered in a 650. The build is set up for more low end torque. Would a larger carb balance it out on the top end, or should I run with the 650 AVS and call it a day?

Thanks.

67 Black RS Coupe, 383, M21 & 10 Bolt Posi. Edelbrock E-Tech 170 Heads, 2204 Roller Cam, Air Gap Intake.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
cv2065 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old Jul 2nd, 15, 12:44 AM
Senior Tech
 
Join Date: Apr 2001
Location: Castle Rock, CO, USA
Posts: 823
Re: Carb Selection

I run very similar build to what you have and decided on a 700 double pumper. Is a great carb for my set up. On the highway I'm getting about 18mpg with my Tremec 5 speed.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


67 Camaro with 388 with Edleborck RPM heads, Air Gap, CC 282S, Tremec TKO
LukeSkywalker is offline  
post #3 of 6 (permalink) Old Jul 2nd, 15, 08:50 AM
Banned
Chet
 
Join Date: Apr 2014
Location: Oakland County
Posts: 1,353
Re: Carb Selection

A street car is operating on its idle circuits 90% of the time. There is one carb out there that blows every other carb out of the water when it comes to sophisticated idle circuits...the QJet. Call Sean Murphy at SMI and see what he says. You can believe what he tells you.
onefiness is offline  
 
post #4 of 6 (permalink) Old Jul 2nd, 15, 05:08 PM Thread Starter
Senior Tech
Chad
 
cv2065's Avatar
 
Join Date: Jul 2012
Location: Orlando, FL
Posts: 1,193
Re: Carb Selection

Quote:
Originally Posted by onefiness View Post
A street car is operating on its idle circuits 90% of the time. There is one carb out there that blows every other carb out of the water when it comes to sophisticated idle circuits...the QJet. Call Sean Murphy at SMI and see what he says. You can believe what he tells you.
Thanks. Checked out that site the other day. Will give them a shout. Thanks.

67 Black RS Coupe, 383, M21 & 10 Bolt Posi. Edelbrock E-Tech 170 Heads, 2204 Roller Cam, Air Gap Intake.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
cv2065 is offline  
post #5 of 6 (permalink) Old Jul 3rd, 15, 01:40 PM
Senior Tech
Mike Petrovich
 
Join Date: Jul 2005
Location: Southern Illinois
Posts: 382
Re: Carb Selection

I've been using a SMI State 2 Q Jet on my 68 with 327 for several years; great carb IMO.

1968 327 sport coupe. Son of original owner.
mike p is offline  
post #6 of 6 (permalink) Old Jul 5th, 15, 11:07 AM
Senior Tech
Dave
 
Join Date: Oct 2005
Location: Rhode Island
Posts: 1,356
Re: Carb Selection

I gotta admit, I had lots of Chevy engines back in the day when they first came on the market (late 60's & early 70's) and I think I had more fun with Quadrajet carbs than any of the Holleys.

It was a little more difficult to properly set up a Q-Jet than a Holley, but the Q-Jets always performed admirably when set up correctly. Very pleasant to drive and very nice throttle response. I used Q-Jets on SB's and BB's.

Plus, another terrific feature of using a Q-Jet is that it was easier to get a street race. When you pop the hood and your opponent sees a Q-Jet, he will think you're an easy mark! Of course, this was back in the day when street racing was relatively safe, and most cars were only capable of 13 or 14 second 1/4 miles.

Dave F. in Rhode Island
'68 Camaro SS Accel DFI 454 (SOLD - I'm a boring Corvette owner now)
Bought my first big-block Chevy in 1970
Chevy-SS is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

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

Password:


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:
OR

Log-in










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



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