No big block I have the bottom end already just looking for help with top end stuff. I have a set of camel hump 202 but don't think It will give me what I want out of them. I really don't want to spend $1500 on some heads I was looking more in the ball park of $1000-$1200. But I guess I need to just break down and spend the money. Just thinking that the $200-$400 could be used on some more engine parts like cam intake carb.