[burnin oil]

You are probably fine. Generally there is still pressure exerted on the gasket from the other bolts to keep the gasket in place. I would worry more if it were a steel shim gasket. A little different but on the Cummins motor I played with you loosened the head bolts one at a time to retorque them. On a new head gasket you install in steps, let it sit a few hours, break loose then retorque. Run motor up to temp, shut off and let cool. Repeat the retorque procedure. No issues with leakage there so I wouldnt sweat an intake gasket. Only one of those I would worry about is the vortec manifolds and only because they dont have the 4 center bolts and the neoprene gasket is prone to breaking. Ironically it is reusable.