Car died

[66_stang]

while traveling down a road going about 50mph i started to notice a very slight hissing noise coming from the driver side. I shrugged it off and continued driving. I arrived at a stop light and my car completely died. I was like wtf? so i turn her back over and the hissing noise is now incredibly loud and the engine wont idle at all. Basically, i have to rev up to 2 grand to even get the car to stay on, and when i do this the car is VERY unstable. The PCV pipe is perfectly fine and i dont see any holes/leaks in the pipes. Any ideas? 1966 A code mustang with headers, cam and intake. Just put those on about 100-200 miles ago

 

[chepsk8]

Sounds like a collapsed exhaust pipe?

 

[iskwezm]

I think a collapsed pipe would make it run hot.Did you lose any vacuume caps or anything in the intake?

 

[krash kendall]

Do you have power brakes?

 

[ForceFed70]

Sounds like a vacum leak...

 

[66_stang]

Do you have power brakes?

yes and power steering

 

[krash kendall]

Check the booster, vacuum feed and grommet on booster for cracks.