I tend to shy away from silicone,it was wonderfull stuff 20 years ago but I've seen it cause more leaks than seal them especially on intake ends.
I would suggest Permatex "The Right Stuff" Comes in a cheese wiz can or a small caulk gun tube.. it's a little pricey but worth it. for things such as timing cover gaskets I squeeze some on my finger and spread it very thin.