THis is a common leak--passenger side at the head/intake joint. Mine leaks. You can attempt to repair--probably will not last. Clean the area real good. Take your time; try to dry the joint as well. Then force a quality sealant into the joint. I used Toyota cam and
oil pan sealer. Held for about 6 months and has only started leaking slightly again.
THis leak is often caused by the intake manifold gasket moving as you line up the manifold. There are many methods, but here's mine: apply sealer to bottom of gasket and sealer to the joint area and where there are gaps. Then lift the manifold straight down onto the motor, trying not to wiggle it.
I have the rear tube and two valve cover breathers--seems to work well.