Ok, these projects pertain to my old 65 mercury comet once again...

Firstly I THINK that I have either a bad master cylinder, power booster, or just loose, bad lines for my power brakes.

Reason I assume this is that when the vehicle is in park and I depress the brake pedal I tend to hear a hissing (air) noise coming from under the hood in the area around the power brake unit. Then when I'm going down the road I tend to have solid brakes when coming to a stop, but the longer I sit in one spot say a light or such I tend to feel the pedal start to push closer and closer to the floor.


My next question pertains to noisy valves on my old 289 engine. In normal idle (cold or hot doesn't matter) you don't hear anything but a smooth running engine. However as you start to rev it up to higher rpms, or as you're accelerating driving down the road you tend to hear the valves chattering away until you let off the gas and just cruise. 

I would almost assume that most of my valves are probably worn pretty well to begin with, and I'm not sure where to begin to correct this issue. would I be right to assume that this MIGHT be a timing issue?

Any thoughts, ideas, whatever are always appreciated..

thanks in advance,

Jared