Alright Bow Tie experts....I need an educated opinion. I have the opportunity to pick up a Chevy 400 for a decent price. First off, I am an idiot when it comes to what engines were built by who...The only 400 I have ever dealt with was in my 70 LeMans and it was a Pontiac. Should I go ahead and pick up the motor? How does it compare as far as performance to the other "common" motors i.e. 305, 350, and not so common 383? I know performance is a good portion of what parts you install but just looking for a general overall view. Thanks.