I took the old one out after verifying it was at tdc on compression stroke. Rotor was pointing at no one plug wire. Old disty has vac advance pot almost against firewall. When I put the new one in, they have the grind on the tang like 40 degrees or so off from the stock one, and the pickup is on the other side of the unit (front instead of back) I have no idea how to figure out if this will fire on the compression stroke or if it's actually 180 off?
