LtSlayer

I bought two metal intake gaskets for both the collector and intake manifold. I installed them but something was wrong so I had to remove them again. They seem to be a metal compression gasket so I'm not sure If i could reuse them or have to buy new ones since they're virtually flat now. They have like 2 miles on them

On a similar note does anyone know the torque spec for the collector half of the intake manifold? I might just go hand tight plus a quarter turn if I can't find out, thanks