Does anyone have experience with ignition systems? I have a Jacobs Pro street that I used on my 77 Explorer, and it made a noticeable improvement. When I finally got my 97 460, I decided to install it and see if it helped. I'm told that the factory system already does a multi spark and that the aftermarkets don't really help. So whats the real story OBTW, I didn't see a big difference after the install on the 460.

Thanks

Therdt

97 F250HD short crew 4x 460 E4od

 

I have never heard of the Factory ignition being multiple spark.
Jimmy