Blue smoke (
oil leak) out of the sidepipes could be the result of a intake gasket leak. This is especially true if you were using the Fel-Pro gaskets. Speculation of my part is people using the printoseal gasket still put RTV on them and it is causing the gasket to get too compressed. The gaskets get mangled and you get an intake leak. I switched to some Victor Reinz Nitro Seal gaskets and it cleared up my
oil in the sidepipe problem.