I had a pick up coil in a camaro years ago get me. I don't remember what ohm, but the book gave me a number and then leave it hooked up and spin the distributor and the ohm value should move. if I remember right, the numbers weren't right and didn't fluctuate when spun. replace it, it matched the book dropped it back in the car and it was fixed. weird little things but cheap and worth replacing when you have the distributor out anyways.