I have replaced the right side exhuast manifold Gasket 3 times..and on a hemi that is the side that you dont want to take off...I've tried Mr gasket.. stock ones, tried RTV red high temp with Gasket.. It may last a month, maybe 2. I re-torque also. The Manifolds have been resurface..any Idea's? leak is not in the same place everytime.Maybe I should no Gaskets?