I have a '48 chevy 2 ton with a 235 engine. When I got it, it had a positive battery cable to the frame so that's how I connected my battery. Now after reading the posts and my manuals I think my system needs to be negative grounded, but someone said that reversed polarity will fry the electrical. My coil is wired with negative to points. Do I just change the battery to negative ground or do I change the coil wire instead?
