I used a Set of them #083 TPI Heads on this 350 Build . They are 64cc Chambers with 1.94"in and 1.50"ex Valves . Pre-Vortec Performance Heads . I would say they are good Street Heads for a 350 350 H.P Build .
Video
http://www.youtube.com/watch?v=RC1DcZjVBvM
http://hotrodhouse.activeboard.com/