[vettestr]

Vector,
I read your method of finding/verifing amount of mechanical advance and I agree. If you set initial at 12 degrees and check total @ crankshaft at 3200 RPM (anything above 3k) to be sure all mechanical is in and find 22 degrees is max, you have 10 degrees mechanical.

Just a thought .... I bet the rotor was not sent to them with the distributor for repair ...so just as a sanity check make sure nothing is haging up on the rotor on the bottom side. I had this happen to me once so now I check when things are not as expected. Also in the mind fart catagory is the fact 20 degrees camshaft is 10 degrees crankshaft.