The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-05-2011, 05:25 PM   #1
sons65project
Registered User
 
Join Date: Jan 2010
Location: La Mirada CA
Posts: 10
timing headaches

65 305 v6. new plugs, wires, cap, rotor, points, condenser, vacuum advance, coil, running a holley 550 2brl. dwell set to 30, timing set to first mark. back fires through carb on acceleration. pulling my hair out, anyone have any ideas?
sons65project is offline   Reply With Quote
Old 04-05-2011, 07:43 PM   #2
awbrown
Registered User
 
Join Date: Aug 2009
Location: Detroit MI
Posts: 1,209
Re: timing headaches

if the timing is set right , then I would suggest it is the accelerator pump in the carb ..... It should start to shoot fuel the instant you start moving the throttle........
awbrown is offline   Reply With Quote
Old 04-05-2011, 07:47 PM   #3
Corts60
Just here to tinker
 
Corts60's Avatar
 
Join Date: Jun 2008
Location: Holland, MI
Posts: 3,697
Re: timing headaches

Popping through the carb is a lean condition. I would set the timing to around 6 degrees. Factory is 4 degrees. Also check that you don't have any vacuum leaks.
Posted via Mobile Device
Corts60 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 08:58 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com