1998 Grand Cherokee Hood Vents

WhooHooo! Scored a set of regulation 98 ZJ hood vents and would like ask for install opinions. I plan to mount these in the factory location as shown on the XJ pic below. When Chryco mounted these in the ZJ hoods (and the export Orvis XJ "bonnets" also), they did not punch a big hole in the hood the same size as the vent; they punched six smaller rectanguler holes that corresponded to the individual louvers. I don't have a rectangular hole punch, but I do have set of round Greenlee punches up to 3" dia. I plan on using these punches as I figure it will retain the hood's strength better and not restrict the airflow too much. Opinions?

The hood strength is in the ribs. A few holes in the skin won't change the basic structure. I just hacked some holes that were smaller than the Pontiac Sunbird vents I used. If you nned more airflow, add some more holes.

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