5 bolt valve cover leaks

set the valve cover on with out the gasket. you may find that its the intake that's holding you up and causing a leak.

Grind cover and or intake to fix problem.

Definitely check this ^^^^. I have the cast aluminum Mopar Performance valve covers and they hit the intake runners, causing massive leaks. I had to grind out notches on the valve covers for the intake runners, now they fit perfect with no leaks. I have always joked that NOTHING on my car fit properly out of the box...even parts made by Mopar needed grinding to fit, LOL!