JayB
My car already can wake the dead as it is fairly loud, but did it make it louder NO Sorry I don't think that is going to be the answer to your problem. You could have air in your system, but you could also have a lifter or lifters that has possibly bled down, could be cured with time of driving or adding some ATF to your
oil, an old mechanics trick. Also there is the possibility of a bad
oil filter, which brand did you use? In my shop I have a few problems with FRAM brand, some people wants to use them when they screw up one of those I told you so. I hate them by the way, personally think they are junk. As for the vibration, being solid mounted you may be feeling some harmonics of the motor that you couldn't feel before with the cushy mounts. Now if there is a motor problem you can throw all this out the window and really start worrying big time.
DON