i kno a couple symptoms of a blown headgasket are over heating, antifreeze in your oil, white smoke out of the exhaust..i just boosted my car and its running really rich.. and i have smoke out of my exhaust i think b/c of it running rich..and i checked my oil on the dipstick and it has some very small bubbles in it..is that antifreeze? how else can you tell?

 

check your coolant, it would probably be easier to see the oil in the coolant just because the two wont mix, so the oil would be floating up at the top.