no colour tune ..
i tune to this chart , by ear, vacuum and EGT as best i can , mostly by ear
of interest subsequent to the addition of the K&N performance air filter the break on the rich side of the curve was unattainable /undetectable. tuned down from full rich to the break for setting , next carb tune in consideration of the dangers of overly lean running i will add 1/4-1/2 rich from the break
if i had an adjustment screw with an extension brazed on it , a torque tube fitted and extended to the panel , enrichment adjustment on the fly in reference to the EGT would be *spiffy*
no OD ,, mine carries 103 K if you were down the way i think i could make the GT sing for you ,, for the MG enthusiast
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