is this a difficult job ,how do I make the hole with out messing up the paint?

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camaro's for ever!!! :D
67 327 11:1 4spd.
70 454 400thm 10 posi
my 70 454 camaro (http://albums.photopoint.com/j/AlbumIndex?u=1422059&a=13264660&f=0)

I'm sure someone will have a better idea, but I heard that if you use tape, masking I believe, it will prevent the paint from chipping where the drill goes thru.
I would use a new bit, or hole saw. You want that baby sharp, and fine tooth.

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Steve
67 SS 396,4-sp
67 RS 327,4-sp
72 RS 350/350
69 4X4 suburban 350,4-sp
73 3/4 ton 454/400
Stevo Camaro's Toy (http://www.geocities.com/stevocamaro)
Our Muscle Cars (http://community.webshots.com/user/steve_lynell)

Steve is right. Masking tape will prevent most chipping.
Hold the drill at the same angle the antenna will be at once it is installed. Center punch before drilling and use a new drill and holesaw. Seal the bare metal before installing the antenna.

A radio chassis punch does a much nicer job with no chips or scratching. You could even use a uni-bit. It cuts much cleaner than a hole saw.

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1969 Camaro 350 & 1969 Impala SS 427/ 4-speed (restored)