Join Date: Sep 2000
Location: Rowlett, TX USA
I'm going through the process of elimination to find out why my '69 Z11 is running like poop at low rpm's, at times backfiring. I checked the points, dist cap and changed out the plugs, fuel filter and it's still running rought at low rpm's. I will say that the plug wires don't look all that great and I'm installing a good set tonight. The car was seldom driven by the 2nd owner, about 2,500 miles the past 2 years! When I pulled out the plugs, 2 were somewhat carbonized and one was kinda black. Also checked the timing and it seems fine.