Can anyone help me find a parts supplier or dearler who has an electronic spark control module for a 1989 IROC with a 305. The AC Delco part number is 16085431. The part has been disontinued. Is it possible the part is re-issued with a new number. Thanks

 

is it the peice inside the distributor? if it is, MSD, Accel, Pertronix and a few other companies offer aftermarket ones, one of them also features a rev limiter than you can adjust as well.

 

It is on the firewall. ac delco discontinued making the part.

 

I think I got mine for my 5.7l at Autozone. I still have the stock on in the cabinet...

 

Yes it's on the firewall, behind brake booster