I got a 1984 GMC serria 1500 i rebuilt a 350 engine and put the 350 down in it. 4bl carb. it seems to get hott really fast, how can i keep my engine cooler ? i have two elc fans and one main fan what else could i do ?

it could be a bad thermostat/fans

lower temp thermostat will help a lot bigger radiator better fans faster spinning fans bigger water pump

it could be a bad thermostat/fans

lower temp thermostat will help a lot bigger radiator better fans faster spinning fans bigger water pump

Flush the cooling system,(radiator), considering in your rebuild ya had the block boiled out and a new thermostat in case ya didn't change it. Cost for everything:$59