YAY!!! Another H/C suggestion thread!!!

I've been doing some research and reading other suggestion threads to try to figure out what to get, but there are so many different applications, and I have no hands on experience, so I come seeking suggestions. Info on the car:
1998 M6
Strange 12 bolt w/ 4.11 gears
315/30/18 drag radials
Stock intake (Probably upgrading along with H/C)
Stock headers (Also most likely upgrading)
3.5" custom catback exhaust.
I'd be happy with over 400 HP, and would be thrilled if I could get close to 450. The car is NOT daily driven, but I don't want a big cam, probably something medium or a lil bit more.
I'm not sure what I would do without your input.
I'm not sure what I would do without your input.

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