I put a 440 in my 87 4x4 w150.....It has a single plug in distributor...however, factory on this was a 360 4bbl with dual plug in distributor...I picked the plug that looked like one off my single plug in distributor...Spark is weak.wont fire...Do I need to splice the other plug wiring into the other one? Or start all over with a Mopar brain plug that you get when you convert points to electronic? and rewire it?

thanks..Jeff