360 runs strange, lifters??

I tried something else... I'm running a Pertronix Digital HP ignition box which allows you to change the trigger type between rising edge and falling edge. I changed that and reset the timing and it seems to run smoother; took a short test-drive and it runs great.

I'm also going to experiment with ported vac advance. I did notice that it revs a bit quicker and doesn't "chug" as much on the down-rev with PVA and the idle speed screw increased to compensate. Didn't get a chance today to test drive with the PVA arrangement but I will asap.