I am about to rebuild the 75 buick 455 I have in my trans am. The motor originally came out of a estate wagon. The motor will be used mainly on the street and I would like to make about 425-450 hp. any advice or recomended reserch material is welcome.

www.taperformance.com (http://www.taperformance.com) has every thing you will need to do a quality rebuild.
Call:480-922-6807 and talk to Dave. He can help you decide how much HP you can get and still remain streeable.