OzyDuster74 full rebuild and hemi conversion!!

There are some threads here on locating the holes for cutting. I think there are also templates you can buy.

For the dual snorkel scoop, there are two holes near the rear of the hood.

72special.snorkle.scoop.openings_sm.jpg

For my dual scoops, the hole size called for 4-1/8" hole but that was a touch too big.The seals still fit and don't fall out but there is play in them. I would use a little smaller saw next time. I'd measure whatever gaskets you have and size accordingly. DMT sells gaskets