-> Ok, I got the '40 LaSalle running and it runs great at low RPM's and
-> when it is not fully warmed up.  I took it out for an extended run
-> and after about 1/2 hour it really started to run rough.  I have new
-> points, plugs, cap, rotor, etc. the carb was rebuilt, and I still
-> don't have a clue.
Have you replaced the coil?  Not very likely, but it could be low on the
cooling oil, therefore over-heating.
Joel
--- QScan/PCB v1.19b / 01-0154
---------------