good ignition module?

This could be caused by reversed polarity to your dist. One way to see how bad rotor phasing is, look on the bottom side of your dist cap; if what I call the burn mark on all eight lugs is way off to one side? The burn mark in all 8 lugs should be somewhat centered. If not; then you have possible reversed polarity or just a screwed up dist with really bad rotor phasing. Of course check your reluctor gap. Set at .08-.10 Also possible bad coil.
:burnout:

Hi, thanks for the reply. Just trying to back track while troubleshooting, I took the Summit Max coil off the car and put the stock Echlin back on it..totally corrected the breakdown at 4500. Someone sent me a note and told me that sometimes the Orange Box doesn't play well with high output coils...I'm learning here so all I could do was give it a try and it worked.

Also changed out the springs in the distributor and got rid of the beautiful braided plug wires. lol Car now idles, but admittedly doesn't run as good as it did last year. Honestly I'm happy at this point it's running and idling.

My carb vacuum is running around 9-10 at best. I currently have the timing set at 12. In your opinion would it help if I advanced the timing a little more? 12 seems high to me, but then again, as I've admitted numerous times, I'm still learning.

Really appreciate the input.

Have a great day.

Dave