Sense my truck decided to have an intake manifold gasket failure, I am slowly trying to fix it. The motor is a 1995 gm 4.3 v6 in a s10. My first question is, what would be the easiest way to clean the gasket surfaces? The cylinder heads are cast iron and the intake manifold is aluminum. My second question is, what would be the best way to clean the bolts before I reuse them? Thanks.