I just finished building a trailblazer 4 valve engine for my Nova Station wagon....close to the same cubes........Inline six.........Made 574HP with 11:1 compression......twin cam 4 valve Thats Normally Aspirated
I then hung a Gt 4788 Turbo on it........made about 1400 HP...do a search on Utube for it. Key Words> 66 Nova station Wagon I6 Trailblazer
