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Mercmarc · 11-02-2021, 12:15 AM

Thank you Tinker, I just received a replacement (warranty) for the HEI system that failed on the electronic portion. I may give it one more try while working with Charlie Ny. I will try running the manifold vacuum to the advance on the electronic version just to see what affect it has overall. The vacuum advance begins pulling at 8 in vacuum but can be tightened up to begin moving closer to 13 in. Either way, at 17 in vacuum at idle it will be full on until leaning hard on the pedal. May not be a bad thing. Still have the centrifugal also. Light springs max out at around 3000 RPM if I remember but I will check the data sheet to be certain. If I recall correctly late 60's SBC used to run full advance at idle.

More to work through.

More updates to follow.

Respectfully

Marc

11-02-2021, 12:15 AM	#16
Mercmarc Member Join Date: Aug 2017 Location: Roseville, Ca Posts: 84	Re: Lean MisFire Thank you Tinker, I just received a replacement (warranty) for the HEI system that failed on the electronic portion. I may give it one more try while working with Charlie Ny. I will try running the manifold vacuum to the advance on the electronic version just to see what affect it has overall. The vacuum advance begins pulling at 8 in vacuum but can be tightened up to begin moving closer to 13 in. Either way, at 17 in vacuum at idle it will be full on until leaning hard on the pedal. May not be a bad thing. Still have the centrifugal also. Light springs max out at around 3000 RPM if I remember but I will check the data sheet to be certain. If I recall correctly late 60's SBC used to run full advance at idle. More to work through. More updates to follow. Respectfully Marc