Hot Rods USA is here in Washington State I beleave. The # is 1 888 875 6666. They will have you talk with a guy named Brian. My question was why so cheap. He said because they order in mass. I confirmed that it was fully electronic with lazor trigger and no need for ECU or ballast resistor . He said yes but you need to have a high out put coil. Brians part of the company is in California. I would call and ask your questions, good people to deal with. As far as I can see its a quality product. Price will very between small and big block but not much.