timing tbi motor

[mpullen66]

How do I set the timing on an 1987 chevy half ton 2wd. 350/5.7 motor. I read on another forum of disconnecting a browm wire, setting the timing to zero, and plugging the wire back in and let the computer take over.
. Is that correct?
Is there any way to advance the timing or doin some "TEST AND TUNING"? 

thanks for any advice,
Mike

[Captkaos]

The computer controls the timing on the TBI motors, so they only way to change the advance is to put in a chip or program one.  There is no way to "play" with the timing.

[mpullen66]

So do I set it to zero like I read?

[Captkaos]

Yes, unplug the wiring in the harness and set the timing to 0 degrees, you could move it some, but not much as it could cause pinging.  If the motor is stock, I would set it to 0.

[mpullen66]

Thank You!