Lots of coils appear to be compatible with a 7al 2 unit but I am am looking for a good, known coil recommendation for race only application. May use up to 200hp nitrous but positively no more. Won't use nitrous if the car is light enough to make the index without it. 500", roller cam, 13 1/2 compression. No street at all. Finished building the trans, coming down the home stretch. I wanna drive this thing! Thanks, Bill