small problems with 85 supra...
 

i just got an 85 supra, and everything is going great, except i can't seem to get the cruise control to work properly. what happens is that i set the cruise, and it will stay activated for a few minutes, then the speed will start to waiver, and then it will give out completly. my guess is that its a vaccume line, but i don't know where to start looking. any help would be great. the other two problems are that it seems to miss or pause at around 5000 rpm, someone told me it was something to do with valve lifters or something, it really didn't make sence to me, so any ideas would be appriciated. the other thing is that i need two trim peices forthe body pannels of the door, if anyone knows where i can get them i would appriciate it. thanks