Are you building a Toy? Just an FYI, I put a MSD ignition pack and a MSD Blaster 2 coil on my 22re. The toyota computer doesn't like to be modified. It ran worse. You will probably need the tack adapter as well. This is not just for the tack to work right, but it allows the computer to understand the ignition. I ended up taking the MSD off and leaving the Blaster 2 coil. The coil really seemed to help by it's self. I have heard that the GM ignition works fine on the 22r, not the 22re.