Jeff, the mechanical advance is working correctly. I had already confirmed it by using the method you suggested. Turned out the wires between the GM ignitors and the magnetic pickups were reversed.
As for my setup, it is the RB 6 port 13B holley intake, with a 1" 4 hole spacer. The spacer was required to make the carb linkage clear the water outlet, the one under the fuel inlet, to operate the secondaries.
I don't know how much difference it would make having a spacer with the channels connecting the runners. Since mine seems to run great with all 4 runners isolated, I have left it that way. It seems to have a good vacuum signal the way it is.
The only carb issue I have, is I need to lower the floats. I ran the car at an autox a couple weeks back, and it suffered from having no power during right hand corners. Likely caused by fuel slosh. I cannot replicate this issue on the street, without driving in a manner that I do not approve of. Since this occured before I found the wiring problem, it could have been related to that.
The carb is still tuned to factory specs, and seems to be doing fine. Once I found the wiring problem in the DLIDFIS, and corrected it, it will idle smoothly at 700 RPM, and pulls hard all the way to 8K. I have a small issue with the ignition still, that causes an occasional misfire above ~6500 RPM. I'm still not sure what is causing that. Perhaps it is related to the condensor on the side of the dizzy not being hooked up. I also need to get a timing light on it, but mine seems to have grown legs and wandered off....
Last edited by Rogue_Wulff; 10-29-2008 at 11:47 AM.
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