70 + voltage regulator issue

Previous owner changed the ignition and voltage regulator in my 67 Barracuda. It has a HEI GM type coil on the fender and the 70 up voltage regulator.
My issue: I had to replace the voltage regulator, got one from local autoparts store. After installing I ran the car, I belive the new VR was bad as it blew out both my headlights leaving me with high beams only. Now all the lights puls or strobe with engine RPM making it real interesting driving at night.
Are there better VRs out there or just got to deal with the China junk?
I am running crack backs headlight harness, but i doubt that is part of my problem.