Timing - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

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

LinkBack Thread Tools
  #1 (permalink)  
Old 09-20-2013, 08:23 PM
Registered User
Join Date: Sep 2013
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts

So all in all im a rookie.
just got myself my first car and im having a blast.
Thing is i need to learn everything so i can tune, maintain and build it...

what i am wondering is how to determine the appropriate timing for the car.I bought it built already and have no real communication with the builder. I have a old school light my dads been holding on to and him to help me set it, but what do we set it too? I asked someone and was told it depends whats inside....

Heres what i think i have...

mid 80s crate motor 350, 4 bolt main
forged flat top pistons and i assume crank
top end was the holley systemax 425 hp kit including cam heads and intake
i was told it has roller rockers and a crane roller not flat push rod??what???
650 holley double pump
stock GM HEI ignition
aluminum adjustable rocker arms with lash, indicates solid lifters im told, problem is kit came with hydraulic lifters. lash is bad i guess?
kit also included lunati hydraulic camshaft and lifters
holley dual plane alumiinum intake
double roller timing chain
fully assembled holley aluminum heads
camshaft specs
intake lift .488''
exhaust lift .510''
intake duration @ .050'':234*
exhaust duration @.050'':244*
rocker arm ratio 1.5
intake lobe centerline 107*
lobe separation 112*

hooker compheaders with flomaster crossover exhaust
ac delco plugs

so the car has power but needs adjusting. i put on new aircleaner lid, the breathable kind, and started getting backfires...switched back and seemed to be ok again.did little adjustments with idle. cars hesitent when you matt it. almost backfires before it gets up and goes.im going to clean the carb and rebuild it with kit. sometimes with new aircleaner lid on the car wants to stall out. i feel like it needs to be re jetted but what do i know. i figured i need to adjust timing also and dont know a thing....any suggestions?

Thanks for any and all help

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 09-21-2013, 08:00 AM
Join Date: Dec 2004
Location: San Antonio, Texas
Age: 56
Posts: 4,018
Wiki Edits: 0

Thanks: 0
Thanked 26 Times in 26 Posts
24 degrees initial
38 max
Use manifold vacuum with 10 degrees.

so timing at idle will be 24+10=34 once the vacuum advance is plugged in.

This will require adjusting the amount of mechanical advance in the distributor.

And buy an adjustable vacuum advance canister.
Reply With Quote Quick reply to this message

camaro, holley, small block, systemax, timing

Recent Engine posts with photos

Quick Reply

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:
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:
Please select your insurance company (Optional)


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
Setting timing with a dial in type timing lite ? f/bird Engine 4 08-12-2013 07:21 AM
Does MSD make a timing control the actually advances timing? Gene1000 Electrical 15 12-15-2011 01:08 PM
Timing sbc corvette timing at 12o clock on both gears? 85 vette Engine 21 12-22-2004 08:23 PM
trying to setting the timing on the timing chain and gears on a 74 ply with a 318 ReggieN Engine 1 10-05-2004 07:54 AM
Trust the timing light or the timing pointer? lluciano77 Engine 6 03-06-2004 01:35 AM

All times are GMT -6. The time now is 07:32 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.