Smoothing out stock M20

[Ahheck01]

get a valve clearancing job done, run 20W-50 if you aren't already.

get new belts?

Is that the same as a "valve adjustment"?

What brand oil?

-Evan

[92 mtechnic cabrio]

get a valve clearancing job done, run 20W-50 if you aren't already.

get new belts?

[Ahheck01]

What can be done to get rid of the "sewing machine" sound of a stock M20 and give it more of a smooth purr sound?

-Evan