Fially got a chance to take the car to a brake shop, and find out nothing wrong with the master cylinder or the vacuum booster, but the engine still idle
real fast, on my way to a engine shop, then all of a suddent, idle back to normal, I have a motorcraft caburator, I think the automatic choke is the problem, and I test drive it again this morning, both idle and brake are fine now, I think the car been just sitting there for 1.5 year probably got something to do with it, I will just spray some WD40, hope the automatic choke won't get stuck agin , ever.
Thanks for all the infor.