wondering, i have an 86 na and needs the wire set to be replaced. I checked the dealer for oem and their asking $119 for the wire set

. I haven't even paid for my books yet and dam its a lot lol. Can i just do a simple tune up from autozone bosch wires 7mm, or do i need to get oem?
I dont know where but i thought i read that 7mm are bad
any input