[todds]

Cool, these posts are great papajam! Where are you getting these graphs from anyway? It seems none of these older dist's had vacuum advances, the "curves" are strictly linear only varying when the heavier spring starts expanding along with the light. The dist's you described in the '84 book all had vacuum advance right? Is that desirable on an alfa engine? I know for ultimate bragging rights on HP and top-end accel all that really matters is total advance but I'm talking driveability and throttle response. I imagine a carefully planned out curve with vac advance would more closely match ideal engine requirements for regular driving, provided of course the full advance is still there for when my webers are opened wide and I'm enjoying that characteristic sound. (kind of like chewbacca except down a few octaves)