Pertronix timing question

[B5blueGC]

I have a Pertronix electronic conversion kit installed for my 340. I am experiencing pinging under higher RPM. I have an Edlebrock AVS2 carburetor.

At idle I have 5 degrees before TDC. At 2000 RPM it only advances 2 degrees. The distributer vacuum was connected to "Timed Vacuum". I tried moving it to "Manifold Vacuum" and the car idled better and I had to reduce the idle speed. Checked the timing again and at 2000 RPM there is only 2 degrees of advance. Went for a drive and pinging continues. Running 93 octane fuel. Idle screws are at 1-1/2 turns from stumble.

Does the advance canister on the distributer work the same way as with points? Wonder if it is not functioning or is Pertronix doing something different?

 

[MOPARMITCH]

I have a Pertronix electronic conversion kit installed for my 340. I am experiencing pinging under higher RPM. I have an Edlebrock AVS2 carburetor.

At idle I have 5 degrees before TDC. At 2000 RPM it only advances 2 degrees. The distributer vacuum was connected to "Timed Vacuum". I tried moving it to "Manifold Vacuum" and the car idled better and I had to reduce the idle speed. Checked the timing again and at 2000 RPM there is only 2 degrees of advance. Went for a drive and pinging continues. Running 93 octane fuel. Idle screws are at 1-1/2 turns from stumble.

Does the advance canister on the distributer work the same way as with points? Wonder if it is not functioning or is Pertronix doing something different?

This guy can help you.... @halifaxhop

 

[Xcudame]

5° Before isn't enough. That's what plugging the distributor into the intake manifold is telling you. Try 12° before and plug the distributor back into the ported vacuum source. How does that run?