When I spoke to the tuner on the day, he said that he tried the 40-43 degree advance suggested in the manual but the results were poor. The current settings are -12 deg at idle and -33deg at 5000 rpm.
Your ignition curve is similar to my 2L Spider which made 169 HP at 6200 rpm on pump gas and 40DCOE Webers. I just wondered if you tried a couple of degrees more.
There is an ABB member who recently built a 2L Nord motor for another ABB member using cams supplied by a third ABB member, that made 230 HP @ 7000 rpm. It has the original type 123 distributor running the D curve.
76 Suzuki GT500
2011 Jaguar XKR
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