360 stroker oil pan leak, pan out ready to re-seal couple of Q's

Hi all,

I've been searching forums like crazy, have a 67 cuda with a 360 stroker in it. The oil pan gasket was leaking all over the place. I pulled pan, bought a new one Kevko (it had a clearance issue) and am ready to re-install. I was debating on using gaskets or just using RTV and no gasket, what's the consensus here? Also think I should install a crankcase evac is that generally recommended on stroker motors, just not sure why this thing was leaking so bad. It had a 1 piece gasket and this moroso oil pan.