[gumby79]

I had an idea on a carb mod for your lean burn setup.

Tuning the fuel to air ratio for peak efficiency with an EGT Probe
From the peak EGT, either increasing or decreasing the fuel to air ratio causes a change in Exhaust gas temperature. Richer EGT cooling occurs because there is excess fuel cooling the exhaust stream via less than optimum burning, and leaner , heating occurs because there is excess air (oxygen) making for a hotter burn. So you must have a base line of where you are starting from regarding cylinder exhaust gas temperatures and a rich or lean condition of the fuel / air delivery system.
Peaking exhaust gas temperature (EGT) with a carbureted engine is frequently a vague point because of less efficient atomization compared to electronic fuel injection to the individual cylinders. As a result, carbureted engines tend to operate smoother at +25 degree +50 degree F on the rich side of peak exhaust gas temperature (EGT).
Fuel injected engines typically provide a more precise peak exhaust gas temperature, therefore the EGT system is likewise a more precise method of performance tuning with fuel injection.
A simple definition of peak EGT is the chemically correct mixture of fuel and air, which gives something close to 100% utilization of all the fuel and all the air delivered to the cylinder.
EGT Probes LVDT Position Sensors Pyrometers Signal Conditioners Electronics H.G. Schaevitz Ind.

Add a screw to the step up spring cover. To push ithe plunger/metering rod down leaning the motor .hook a twist type cable to the screws (have to figure out a spliter, 2 metering rods.) Run into the cab then when cruising down the highway twist to tune. As there is some taper between the needle steps.
This could be automated with a servo controler and this signal amplifier and a fast response probes at 125ns run one for each bank.
Add a vac switch to shut system down in power mode to alow full enrichment.
Dreem big chisel down to reality