Join Date: Sep 2000
Location: Rowlett, TX USA
I'm on the last leg of my HEI conversion from a points distributor. As you may recall, my '69 Z11 was running very sluggish at low rpms and I was going through a process of elimination in hopes to identify the problem. I have changed the plugs, checked the points, distributor cap, timing, etc and my car still ran like "poop."
To remedy the problem, I bought an Accel HEI distributor and Taylor 8mm sparkplug wires. Before I dropped the new HEI and plug wires, I decided to regap the plugs from a .30 to .45 to accommodate the HEI. When I pulled out the plugs, I noticed that they were a little black. Keep in mind that I've only fired up the car twice since initially changing the plugs about a week ago. I let the car run for about 5 minutes, reaching a water temp of about 160 degrees then turned it off. Is it common for the plugs to turn black so fast?
I will have to make a "minor" adjustment to the firewall to accomadate my cowl induction air cleaner and element, before I actually fire the car up tomorrow. I'm hoping that this will finally solve my problem.