you want to put a Buick 350 in your Camaro? dunno. maybe a early 70's (up to 74) Buick Apollo setup would work, as it had the same subframe as your Camaro and i think had Buick engines installed at the factory.
1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16X8" IROC wheels. 12" Corvette brakes on the way.
see pics here http://community.webshots.com/user/novaderrik
68-72 buick 350 frame and engine mounts, should be easy to find. Also remember that if you have a chevy trans in the camaro it wont fit the buick, need a BOP (buick/olds/pontiac) trans with the correct bellhousing. You can do this but really there are so many chevy engines out there I dont know why you would.