anybody elses 4.3 runs like shit warm ? my 4.3 CPI runs phenomenal on a cold start with gobs of power but soon as the temp needle goes over 120 its like i lost 30hp and it wont even lay rubber.aside from the power loss it runs well still gets 16mpg city ac always on.about 58psi idle new cpi fuel system ignition everything on it is new.only codes are po700 p1100 and are always present even when the truck is running well.any ideas ? thanks fellas