What carb and intake - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 05-04-2006, 08:05 AM
Registered User
 
Last photo:
Join Date: Jan 2006
Location: NC
Posts: 201
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What carb and intake

I have a mild 327 ijust rebuilt it has 305 58cc heads, performer cam 112 lobe sep. 1 5/8 long tube headers. Car is in the 300 hp range, i started with factory Q-jet intake and 750 Q-jet Then went with 600 holly then holly street dominator 300-36 with 600 holly. Car has 373 rear gears, i built this car to have good bottom end. It just does not pull hard as i want. I have a 70 mavrick grabber 302 good size cam FMX tranny 410 gears 2 barrel carb, it will damn near pull the front wheels. The chevy is a 73 nova 350 turbo with B.M. shift kit any ideas thanks Wormy.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-04-2006, 08:54 AM
Member
 
Last photo:
Join Date: Oct 2002
Location: Lexington, Kentucky
Posts: 122
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
In my opinion, the 327 is a high revving engine and was designed to be just that. A stock 327 is a 4.00" bore with a 3.25" stroke as opposed to a 350, same bore 3.48" stroke. The 350 will give more grunt down low in the rpm range due to increased stroke. A 383 (3.75" stroke) will be a torque monster right off idle.

The low rpm torque of the 327 (the problem you mention) has always been a problem for a street car, but it will SCREAM once you wind it up!!!!
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-04-2006, 09:35 AM
Member
 
Last photo:
Join Date: Nov 2004
Location: Lakeland FL
Age: 65
Posts: 4,110
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
you answered your own question,

the grabber has a 500cfm? carb, and the stronger cam, slightly deeper gears, and (?) weighs less than the 327 car helps alot

some of the carb mfgr's sites used to have cross references for carb size/motor cube selection, check them out, I would expect they will be about 500 cfm if is low end torque is what you want from higher Hg and velocity
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-04-2006, 09:50 AM
Registered User
 
Last photo:
Join Date: Nov 2004
Location: Cali
Posts: 994
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The 327 wasn't specifically designed as a high revving motor, it was also a mid-size V-8 offered in passenger cars and trucks during the 1960's and into the 1970's. The 0.23" increased stroke of the 350" motor adds torque but not anything out of the ordinary.

Have you done any dyno or strip testing of your Nova? The fact that your Maverick runs good has little bearing on the setup of your Nova. What are the rest of the engine and chassis specs on the Nova?
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-04-2006, 03:17 PM
Registered User
 
Last photo:
Join Date: Jan 2006
Location: NC
Posts: 201
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I am building the nova for my wife, car is pretty much stock just added gears, slapper bars,the shift kit, The motor was a 66 2 ton truck motor i have had for about 10 years it only had 30.000 og. miles i rebuilt it stock no ridges bore was good honed only, the rest is stock except as stated above. Has 50 lb oil pressure at 600 rpm hot cam is not wild 420- 442 it just seems to need somthing, Motor has about 100 miles since rebuild im not looking for a 12 second car just a good running street car.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fabricating intake manifold. gemini86 Engine 25 10-02-2009 01:10 PM
Intake Manifold and Carb Ozz1967 Engine 9 12-29-2005 12:34 PM
Performer RPM intake & carb Q MegaTherion Hotrodding Basics 1 09-14-2005 04:13 PM
HELP cam, intake, carb 64 nova Engine 9 07-12-2005 10:39 PM
Stipud ? Maybe/Need help determining my Carb and intake ArchonRacing Hotrodding Basics 8 01-15-2005 06:03 PM


All times are GMT -6. The time now is 10:47 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.