Im Just Curious How The Gm Performance Distributor Is On Summitracing Because I Need One Fast And Im Tight On Cash. So I Just Wanted Some Feedback On That. Also What Is The Difference Between Optispark I And Optispark Ii. Id Appreciate Any Feed Back, Thanks Guys

 

I just installed mine 3 days ago, Qaulity piece and it actually comes in a GM ACDelco box. You can't go wrong with it!!