I got a timeing light for Christmas. I have never timed a car before. I dont know what my timing is supposed to be set at stock. I have looked in my Helms and Haynes manuels and they both said to look in my owners manuel or under the hood on the emissions sticker. I have neither. It is an 87 Iroc-Z l98. If you can help me out that would be cool. Thanks

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1987 Iroc 350
GTS headlight/tail light covers
Camaro SS Wheels w/Sumitomo HTR ZII 275 rear, 255's in front
K&N filters
Adjustable Borla cat back
Large tube runners
ported plenum
Holley afpr
SLP 1 3/4" headders (not installed yet)
FUTURE GOAL:
To go really F'in fast!!!

Some pics of it at
http://albums.photopoint.com/j/Album...949&Auth=false

 

6*BTDC (before top dead center)



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91 Formula
305 TPI 5speed
1LE/G92/WS6
Custom K&N cold air intake, SLP airfoil, ported & hi-polished plenum, March pulleys, TB coolant bypass,Crane AFPR (47psi),94 octane,Crane Extruded Alum. 1.6 full roller rockers,10*BTDC,MSD coil,MSD6AL, Holley 9mm Annihilator Laser shot 50 wires, Ac Delco cap,rotor and plugs, Bosch O2sensor, SLP 1 5/8 headers,SLP catback,3:73s,180* t-stat,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.
Street legal with stock throttle body, runners,intake manifold,cam, and heads.

 

You will also need to disconnect the tan/black stripe wire above the blower motor, otherwise the computer will advance the timing and you won't get a true reading....

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86 TPI 305 Iroc-Z
700R4 (rebuilt)
3.42 Posi
Accel HEI SuperCoil
Flowmaster
K&N Filters
Comp Cams High Energy H268 218@.050 454/454

 

You do know how to connect the timing light?
And you do know where the #1 cylinder is too?
Right?
It may sound stupid but I didn't know where the #1 cylinder was when I started timing my car and boy was that a mess!LOL.
Depending on mods I heard people advancing the base timing up to 12*. But it is good to go to the track when fine tuning.
Good Luck and have fun!

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89 IROC 350 Auto
Custom DUAL Exhaust
Edelbrock Performer 6085 Aluminum Heads
ZZ9 Cam
TPIS Level 5 Chip
14.01 @ 97.0mph with 2.77's gears and a bad ignition control module!
And Free mods.

 

6* is stock for a little more ***** try 9*-10* especially if you don't have an aftermarket chip which would advance your timing itself