Ok guys so after fixn my last problem i had which was a bad injector now i got another one hope you guys can help me out well iv noticed like white foam on the radiator and some on the cap also hasnt over heated oil doesnt seem like it has water in it did a compression test 220 all across coolant does have water mixd with it due to me replacen the thermostate a couple months ago havnt drained and refilled it i plan on doing it this week also do my oil change i plan on doing a 50 shot on the motor i was going to change the headgasket and put arp head studs anyways just wasnt planing on doing it so soon its my daily so i really need to get it fixed before it overheats or blows the hg thanks in advance its a b18c type r engine