As I said in an earlier post on this thread "
my approach to diagnostics is to first check all settings and make sure everything is within spec. " so yes the timing is correct. I did post the thermostat question of "CC "Shop Talk" and I think I my now understand how the thermostat can affect the running temp on hot days. I am going to take ..........................this is hard for me to put in print

.............Jamo's suggestion and change out to a lowwer value thermostat and see if that be this issue.
Thanks all................ and my Butler buddy Jamo, I'll let you know .............Hey, I just realized that I'm on the "FE Talk" Forum, Jamo what the heck are you doing here, you have a 351
Thanks,
Mike "monster"