ignition timing advance
I've got an hei on my 258 and i'm getting ready to replace the weghts and springs with a mr gasket recurve kit. Well the kit has three diferent sets of springs, so which ones are the "stock" versions? The diagram for them has one set starting to advance at about 900 rpms. The second set starts at about 1800 rpms and the last ones start about 2500. Anyone have an idea which ones would be the optimal ones to use. Also, the lower the starting rpm the bigger the curve.