Carb and intake question - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old Dec 28th, 05, 02:09 AM Thread Starter
 
Join Date: Dec 2005
Posts: 4
Carb and intake question

I recently purchased a edelbrock performer series 800 cfm carb for my 1967 Camaro 350. I have read many posts that have said not to even bother with a carb that high, that the 600 series is better. Is this correct, and if so what intake should i get if i get the 600? Thanks
LHSCub6 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old Dec 28th, 05, 05:50 AM
Senior Tech
Steve
 
67 Convertible's Avatar
 
Join Date: Oct 2004
Location: Hudson, MA
Posts: 1,501
Re: Carb and intake question

I have a 327/275 in my '67. I went with the EDL-21011 intake with an EDL-1406, 600 cfm w/elect. choke and a Lunati 00016 cam. Car runs great, no problems with the carb at all, very happy with this set up. Not a 350, but hope this helps.

'67 Marina Blue Convertible. L30, PG. All numbers match, 41k original miles.

"The only time you have too much fuel, is when you're on fire"
67 Convertible is offline  
post #3 of 8 (permalink) Old Dec 28th, 05, 06:37 AM
 
Join Date: Nov 2005
Posts: 143
Re: Carb and intake question

the intake should be correct for your engine...if you are only revvin to 5000 then stickwith the performer or something equivalent.if your makin good power in the 6000 rpm range then switch to performer rpm style...anything higher use an open plenum manifold......the 800 edelbrock is quite large for a mild 350 even more so if its an automatic with no stall....a smaller carb will always be more responsive to a limit when you need more cfm for power.......www.hardcoreparts.ca
pro1 is offline  
 
post #4 of 8 (permalink) Old Dec 28th, 05, 07:28 AM
 
Join Date: Oct 2005
Posts: 477
Re: Carb and intake question

I second pro1. He is correct a smaller carb would be more suitable for your engine. Your intake however is a good choice. IMHO
TexasPerfProd is offline  
post #5 of 8 (permalink) Old Dec 28th, 05, 10:30 AM
Senior Tech
Wes
 
Join Date: Dec 2003
Location: Leander, TX
Posts: 2,762
Re: Carb and intake question

I'm forever the Q-Jet fan on milder builds,..750 cfm, easy to tune, etc.

Of course you'll need an intake that accomodates a spread-bore carb, but nothing like the ol' Q-jet when you kick in those big secondaries!

My opinion,..good luck regardless!
Straight-line-69 is offline  
post #6 of 8 (permalink) Old Dec 28th, 05, 06:39 PM Thread Starter
 
Join Date: Dec 2005
Posts: 4
Re: Carb and intake question

has anyone heard about, or had any problems with the edelbrock 800 cfm. I have heard many problems with the 750 series, but i think the 800 fixed those problems. I might give it a try with a rpm air-gap intake.
LHSCub6 is offline  
post #7 of 8 (permalink) Old Dec 28th, 05, 10:27 PM
Senior Tech
 
Join Date: Apr 2003
Location: Allen, TX
Posts: 2,108
Re: Carb and intake question

You don't want an RPM Air Gap, go with a Performer intake and the 600cfm carb as the others have mentioned. Your 327 will idle better and be more responsive.

1969 Camaro - GM 2003 Electron Blue
Beck Racing 383 cu in 465HP Engine - Sean Murphy Inductions Stage 2 Quadrajet
TCI Streetfighter 350 - 3.73:1 Posi 10 Bolt Rear - 12.6 sec qtr mile

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
and
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Brian Lewis is offline  
post #8 of 8 (permalink) Old Dec 29th, 05, 10:00 AM
Senior Tech
 
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Re: Carb and intake question

The 600cfm rating is appropriate for a street driven SBC350 if the carb is a square bore carb (as most of the Holley carbs are). If you use a spread bore (like the Q-jet or Edelbrock) then you can affort to go a bit higher. As for intakes, on a street motor, just about any dual plane intake will work. I run the Edelbrock Performer RPM.

For square bore carb sizing, this formula will get you in the ball-park at 100% volumetric efficiency. In reality, the VE will depend on the heads, cam and other variables. 80% is realistic for a stock engine, 90% or higher can be obtained with the right heads and cam (though the power band is likely to be much more narrow). In any event, multiply the result from the formula by the VE (i.e. multiply by .80 if the VE is 80%).

CFM = MAX_PRM * DISPLACEMENT / 3456.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult 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