Ok, so after putting my 484 Hemi together and everything works great, it leaks oil out of the side of the heads. I used a steel shim gasket with no sealant (yes, I know and am now paying the price). So I took the heads off and prepped everything for re-assembly. I am using new steel shim gaskets. What would be the best way to make sure it does not leak again? I like using the "right stuff" gasket maker but not sure it should be used here. Would the permanex copper spray work better? Thanks.