I purchased one of those for my 383 a few years ago. I also purchased a set of their plug wires at the same time. I installed the wires immediately, but I didn't install the coil right away and just left it in it's box, sitting on a shelf in my garage. About six months or so later, I noticed that the box was saturated with oil. The coil was leaking! So, since it was too late to take it back to the store where I bought it, I took a chance and mailed it to Accel, along with a letter explaining the problem, not a nasty letter though, LOL. A couple weeks later, I received a new coil in the mail. So, I was quite happy with their customer service.
This coil has slightly less primary resistance than the factory coil, so that may or may not be a concern. I bought their big Super Coil many years ago for my 390 and even with the extra ballast resistor that came with it, I still ended up frying my points. I had to add a second ballast resistor, but even with two ballast resistors wired in series, that coil made a huge improvement to the way my engine ran. I still have that coil on my 390 and it still works great.
