feels like its going too stall??

Hey everyone been this'll be my first post, I have a 1995 riv supercharged and every so often it seems too bog down a little bit. Usually if I'm cruising around 30 mph it will hesitate but only for a second, it seems more like a missfire but the plugs were just done? Any help would be great! Thanks!

http://easyautodiagnostics.com/gm/3.8L/index-of-articles-1 run these tests if all else fails replace all the intake manifold and valve cover gaskets. Might check the ground wires too make sure they are clean and tight.

Thank you!! Will be going through these tonight hopefully get it fixed! Im planning on doing all the gaskets I was reading all the write ups on here!