The problem with just using a pure delta is that at low RPM only the fist X% of throttle movement will have an effect on airflow. IE if you are at idle and you wap the throttle to 50% there will be a huge increase in flow vs If you are lugging your engine on the highway and wap the throttle you may actually flood it out a bit. That was my reason for at least wanting to see how effective using the "fueling/PW delta" is.
Although this is true, the amount you need for initial opening is a small proportion of what you've already got at a wider opening.
A carb pump doesn't know anything about RPM,
4) Carb pump works on volume, same volume is induced much faster at higher RPM. If you have a 200ms enrichment then that's tiny at low RPM and HUGE at high RPM. By volume automatically compensates.
It's sort of self-correcting. The accelerator pump dumps a flat amount of fuel based on throttle movement. The same movement at a higher RPM will automatically spread that shot out over more cylinder events.
I swear there's a fucking echo in here! If no LT1 log + vid + rip that all match in the next 7 days, I'm turning off your postability so you can focus better :-p
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