Watch EngineMasters on motortrend on demand. Season 2 episode 24.
Stock those swirlport heads made 235 hp on a dyno with no accessories, they did a cam and vortec head upgrade to that engine, 397 hp.
https://ls1tech.com/articles/video-best-cheap-350-mods/
Stock those swirlport heads made 235 hp on a dyno with no accessories, they did a cam and vortec head upgrade to that engine, 397 hp.
https://ls1tech.com/articles/video-best-cheap-350-mods/