the intake gaskets are junk also. mainly because of the dexacrap coolant. mustangs are the same. i'd replace lim gaskets (if needed or unsure) and swap to the regular cheaper antifreeze, also clean out the coolant reservoir....a good tune or tuner will wake up the car and the trans setting are adjusted and make it much more driverfriendly and capable....i bought mine with 175k and now have 218k. new motor going together on the stand soon. o.p. leaks like a muthu. some replace the op gasket in car but i;ll wait and do new motor sometime.