Fel-pro does not recommend using cement when installing their rubber gasket. I know I tried doing it with glue the 1st time and it leaked. The way I install the valve cover without glue is to put the VC bolts into the VC while on the workbench. Put the rubber gasket over the bolts, and there is enough tension there to hold the gasket and the bolts in place while you put the VC on the head. Start tall the bolts, and check with your fingertips as you tighten to be sure the gasket is in place. Works like a charm for me.