I pulled this rotor out of a 71 big block that wants to cut out above 2800 rpm. I have never noticed a pattern like this on a rotor before--maybe I have just missed it. Do the small dots (8 in the circle and 1 in the center) indicate anything to those of you who are for more experienced with engine diagnosis than I am? (Other than it is an 8 cylinder). Car has original coil, replacement TI amp, new GM TI pickup coil, new GM braided plug wires, new AC plugs. Ready to replace rotor with extended tip one. Any help much appreciated.
distributor rotor pattern (1).jpgdistributor rotor pattern (2).jpg
distributor rotor pattern (1).jpgdistributor rotor pattern (2).jpg
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