I need to put some vents on new valve covers. Is there a kit to do this? I want the kind that connects to the flame arrestor.

I have never seen a kit that comes with the tool to drill the holes. You have to check the valve covers some have a pattern on the reverse where the cut goes. Use a unibit and go to work than put in the grommet. It usually above the baffle. Not hard to do. Please do this with valve covers off. You can go get the hose at autozone and the fittings as well.