My '85 SD is abnormally slow after first start-up and will only crawl off the line when I leave the drive everyday. The outside temps are in the 80's and it has new filters, cleaned banjo bolt, boost line, but will not hardly move until the engine reaches operating temp or 2500 rpms (turbo kicks in). After the car is warm then it functions normally. If you let it sit and cool for 6 0r 8 hours then you have the same problem again. Am I just being paranoid?

Kevin