[st_two_007]

when it comes to motor mounts clunking is defenitly a sign they are going or gone also if when you apply load to the motor if there is excessive engine rocking it usually means there is someting a little off but just keep in mind the engine is supposed to rock a little bit

When it comes to your rough idle it could be many things bad fuel filter, bad ground, bad sensors or even with the mods you have done to your vehicule the air fuel mixture may need to be adjusted for it to run 100% smooth. It's a tuff call