I want to bump the timing up on my 96 5.0. It has OBDII and I'm only familiar with EEC IV.

Can I use the same method as EEC-IV and move the base timing up until it starts to ping on acceleration? Is there anything in OBDII that will ignore my efforts and it just does what it wants?

Does this system have a spout connector that you unplug for timing?

What timing are you guys running at higher altitudes? I'm at 4200 ft.

Anything else I should know?

Thanks

 

you can do just like you said. remove the spout (under drivers side hood hinge) set base time up until it just pings and then back it down 1-2 degrees. use high octane gas and gain a little more timing and power. then plug the spout back in. elevation shouldn't matter as long as you set it just under the ping threashold. the base timing for your 96' 5.0 is 10 degrees BTDC

 

Thanks for the location of the spout. I would have been looking for awhile since it is located next to the distributor on my Mustang.

It seems like I've heard that at higher elevations you should advance the timing a few degrees more that the base callout. Don't know if that is true but I have noticed on the many vehicles that I owned over the years that I can run a bit more, while staying just below the "ping point". Just curious if anyone else running at higher altitudes has noticed any difference.