to make a long story short i never had any problems untill i installed headers. but now, when everything is cold and outside temp is cool, the tranny shifts like butter all the time. but when the outside temp increases to 80 plus, everything starts out ok but as the engine, tranny etc get hot, i have a hard time getting into gear at a light. let it cool down for a few minutes and everything is fine. i talked it over with a buddy of mine who does trans and rear ends for a living and he thinks the clutch release fluid is boiling and all i need to do is add more heat shielding for the line. (he has seen the same problem with mustangs). i have not gotten around to try it but i thought i would pass the info along. i know the line is plastic but depending on the plastic, some have some really high melt points and the older the brake fluid - the more water it has absorbed and the lower the boiling point . any thoughts out there??