Originally Posted by 90 hatch

i have a 90 civic hatch. put a 90 ls motor in it. when i floor it, it does not go anywhere. it is like it is dragging. also the damn thing overheats. dont no if it has anything to do with exhaust. all i have on it is header a downpipe. i think it could possibly be a fuel problem why it is not running right. put a new thermostat on it. on the top radiator hose, when u squeeze it, aint it suppose to be like there is fluid in it. if so, i a not getting flow thru the radiator. maybe overheating problem. need opinoins, please help.