1: 68767 8718 (on side)
DELCO ACXZ 1122 (inside)

2:68767-94200 3 (on side)
4218 ABWN 8656 (inside)

3: 68767 94249 1 (on side)
this is an Arizona Speed & Marine ship w/ thier part # EI274CA.JS
I contacted them about ID-ing it with no success though.

Thanks for any help in advance guys!

 

1. acxz-1987 LB9 5.0L, manual trans

2.abwn-1987 L98 5.7L, Auto trans

3. No idea

 

I run the ABWN in a modified 5.7L. Very surprizing at how well it runs.

I also read on a TPI swapping page (street roding), that this was the recommended PROM to use. I assume that is because it was one of the later 1987 PROMS, and it does not have VATS.

If you had to start with a $32B PROM, then this one is a decent starting place. Spark advance is much like the mechanical distributor. It is only added based on RPM. It does not appear to add any in based on other inputs like TPS. I compared this one to a 1988 BIN and the spark curve was the key difference.

It's a good starting point for getting your engine up and running.

Mark.

 

yo, ed, if you need me to pull up whats on that arizona speed and marine chip, i might be able to with tuner cat if its a $8d file.

 

Definitely, I'll catch u online. Thanks!