Leaky 400 RB... Any suggestions???

I was told that the Copper RTV worked best on those. I'm going to order some valve cover gaskets along with new exhaust manifold gaskets. I plan to retorque the heads, reseal the valve covers, and reseal the studs going into the water jackets. If that doesnt fix it, time to pull the motor. I hate leaks!!

Thanks for your comments again. Good to have support before you go about a project like this.