AZ had a hand held tester. I looked at it to see if it has a resistor network and it did under a vented metal cover. I also put a new 800cca batt. in it and same thing. I used some cable I got from work years ago. not sure what gage it is. it is as big as most batt cables I have seen. I will have to look again and see what gage they are. worked with the old chrome bx for 8 years. don't know why the MSD has to be so picky.