On the .035 gap for HEI issue, you are thinking it lessens the number of variables but what is not computing to me is that to set up any HEI test, you are changing coils, removing ballast resistor, installing the HEI module, etc. So I don't understand why .035 HEI gap, which is totally incorrect for its operation is going to tell us anything. I REALLY only want to do two gaps on each style ignition. To add three more tests really seems like alot for something that nobody will ever do. It isn't comparing apples to apples due to the coil change.
On the throttle issue.. Im still confused. Idle is (for example) 650 RPM. It's 650 RPM using the stock ignition and its STILL 650 RPM using HEI. Since I am starting with the stock ignition and it's weaker, I set the throttle for 650 RPM. When I go to the HEI I set the throttle for 650 RPM. What does the throttle movement differences tell us? I will NOT be changing ANY controls on the carb for these tests. That is messing with a control. Before testing I will make sure I can get down to 550 RPM just to make sure I have the ability to control the RPM in the range I want using both ignitions. Does that make sense? Or do you think it's okay to re-optimize the carbs idle circuit for each ignition? The idea was to see how changing just the ignition system would affect fuel consumption. Sincerely, thank you for the help.
