Problem with new 347

[90silverstang]

I'm having a problem with a new 347. 30lb injector, Edelbrock performer rpm II, LT headers, 190lph FP, Dart 190cc heads. Anyway-- the engine runs well until the engine temp reaches 210F. Would this cause a out of range condition for the EEC, because after the engine gets to 210F it runs like crap, it surges misses etc. I am using the stock radiator with a 185F Tstat. check engine light then illuninates.
When engine cools I clear the EEC it runs fine until it heats up again.
Suggestions would be appreciated.

 

[liljoe07]

Run the codes, with engine at that temp.

 

[90silverstang]

Which should I run KOEO, KOER?

 

[BigmacK192]

Run KOER at temp. And after that, pull the KOEO.