so I have been looking for a better engine to replace my 350. especially since the last guys who built it never gave me the specs... But anyways I have found a Chevy small block (stock) and I want to rebuild it on my own. Now I want to know if this is a good investment. I want more horses. Now has anyone worked on one of these or rebuild one for performance? The motor is all stock and I want to make it a 406. Pistons I was thinking of summit. now I am not sure about a good cam. and can I use the heads? or should I order aluminum heads? also for an intake I again was looking through summit but im not sure what is best for fuel delivery. And this will be my first motor rebuild!! any extra tips are welcomed.