slide2unlock

so, i swapped my 92 hatch from a dual cam ka-t to an sr20det that was recently built and whatnot, so my problem now is, my car boils coolant after like 15 mins of being on, it has an isis aluminum radiator, and none of the hoses are kinked, and the system is properly bled. the gauge inside the car reads in the middle, not once does the car overheat. It just boils coolant and sometimes there is white smoke out of the exhaust, i have an apexi headgasket and im pretty sure its good because the compression is fine, and the car ran fine previously.