overheating issues

:munky2:Running into trouble here and scratching my head.
this is what i got. 75 dart swinger with a 440 stroked to 500. 84 cc edebrock rpm head. edelbrock pro flow multi port fuel injection. keisler 4 speed auto trans. aluminum radiator with electric fans. meizere electric water pump. t stat is 180. also i have no heater.

finally put the engine together and dropped it in. trying to fine tune the fuelinjection but the engine keeps overheating. wondering if the elcetric water pump has anything to do with it. thinking about re converting it back to mechanical and i'm about to remove the t stat. also the base timing is at 10 btdc.

any ideas?